{"product_id":"switchback-wooden-marble-run-kit","title":"Switchback: Wooden Marble Run Kit, 254 Pieces","description":"\u003cdiv style=\"font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:#241c15;max-width:720px;line-height:1.6;font-size:16px;\"\u003e\n\u003cp style=\"font-size:19px;font-weight:600;line-height:1.45;margin:0 0 10px;\"\u003eTurn the handle and watch ten marbles spiral down a giant funnel.\u003c\/p\u003e\n\u003cp style=\"font-size:16.5px;margin:0 0 18px;\"\u003eA wheel lifter and a stair-step elevator carry the marbles up, a flip-flop switch sends each one down one of two paths, and the funnel speeds them up as they whirl to the center. No motor, no batteries.\u003c\/p\u003e\n\u003cdiv style=\"margin:0 0 22px;\"\u003e\n\u003cspan style=\"display:inline-block;background:#F7F3EC;border:1px solid #E3BE85;border-radius:99px;padding:5px 12px;margin:0 6px 8px 0;font-size:14px;\"\u003e254 pieces\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#F7F3EC;border:1px solid #E3BE85;border-radius:99px;padding:5px 12px;margin:0 6px 8px 0;font-size:14px;\"\u003eAbout 6 hours\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#F7F3EC;border:1px solid #E3BE85;border-radius:99px;padding:5px 12px;margin:0 6px 8px 0;font-size:14px;\"\u003eNo glue\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#F7F3EC;border:1px solid #E3BE85;border-radius:99px;padding:5px 12px;margin:0 6px 8px 0;font-size:14px;\"\u003eNo batteries\u003c\/span\u003e\u003cspan style=\"display:inline-block;background:#F7F3EC;border:1px solid #E3BE85;border-radius:99px;padding:5px 12px;margin:0 6px 8px 0;font-size:14px;\"\u003eAges 14+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size:20px;font-weight:600;margin:0 0 12px;\"\u003eWhy you'll love it\u003c\/h3\u003e\n\u003cul style=\"list-style:none;margin:0 0 22px;padding:0;\"\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cb style=\"color:#C98F4E;\"\u003e✓\u003c\/b\u003e \u003cstrong\u003ePhysics you can watch.\u003c\/strong\u003e The tighter the spiral, the faster the marble: the same trick a skater uses to spin.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cb style=\"color:#C98F4E;\"\u003e✓\u003c\/b\u003e \u003cstrong\u003eTwo lifts, one crank.\u003c\/strong\u003e A wheel lifter and a stair-step elevator work together off the same handle.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cb style=\"color:#C98F4E;\"\u003e✓\u003c\/b\u003e \u003cstrong\u003eEvery run is different.\u003c\/strong\u003e The flip-flop switch splits the flow, so marbles take different routes.\u003c\/li\u003e\n\u003cli style=\"margin:0 0 11px;\"\u003e\n\u003cb style=\"color:#C98F4E;\"\u003e✓\u003c\/b\u003e \u003cstrong\u003eTen marbles included.\u003c\/strong\u003e More than most kits: enough to run several at once.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"background:#F7F3EC;border-left:4px solid #C98F4E;padding:14px 18px;margin:0 0 26px;font-size:15.5px;\"\u003e\u003cstrong\u003eGreat gift for\u003c\/strong\u003e puzzle lovers, engineers, physics fans and anyone who needs a screen-free evening project.\u003c\/p\u003e\n\u003cdetails style=\"border-top:1px solid #E3BE85;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;font-size:16px;padding:14px 4px;list-style-position:inside;\"\u003eSpecifications\u003c\/summary\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:15px;margin:4px 0 16px;\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background:#F7F3EC;border-bottom:1px solid #E3BE85;\"\u003e\n\u003cth style=\"padding:9px 12px;text-align:left;width:42%;\"\u003eAssembled size\u003c\/th\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e10\" W × 9.3\" D × 7.3\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fff;border-bottom:1px solid #E3BE85;\"\u003e\n\u003cth style=\"padding:9px 12px;text-align:left;width:42%;\"\u003eParts\u003c\/th\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e254\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7F3EC;border-bottom:1px solid #E3BE85;\"\u003e\n\u003cth style=\"padding:9px 12px;text-align:left;width:42%;\"\u003eBuild time\u003c\/th\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eAbout 6 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fff;border-bottom:1px solid #E3BE85;\"\u003e\n\u003cth style=\"padding:9px 12px;text-align:left;width:42%;\"\u003eDifficulty\u003c\/th\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eAdvanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7F3EC;border-bottom:1px solid #E3BE85;\"\u003e\n\u003cth style=\"padding:9px 12px;text-align:left;width:42%;\"\u003eDrive\u003c\/th\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eHand crank only, no motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fff;border-bottom:1px solid #E3BE85;\"\u003e\n\u003cth style=\"padding:9px 12px;text-align:left;width:42%;\"\u003ePower\u003c\/th\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7F3EC;border-bottom:1px solid #E3BE85;\"\u003e\n\u003cth style=\"padding:9px 12px;text-align:left;width:42%;\"\u003eTrack\u003c\/th\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eSpiral funnel, five rails (two straight, three curved), flip-flop switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fff;border-bottom:1px solid #E3BE85;\"\u003e\n\u003cth style=\"padding:9px 12px;text-align:left;width:42%;\"\u003eMarbles\u003c\/th\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e10 included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7F3EC;border-bottom:1px solid #E3BE85;\"\u003e\n\u003cth style=\"padding:9px 12px;text-align:left;width:42%;\"\u003eMaterial\u003c\/th\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eLaser-cut wood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fff;border-bottom:1px solid #E3BE85;\"\u003e\n\u003cth style=\"padding:9px 12px;text-align:left;width:42%;\"\u003eAssembly\u003c\/th\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eNo glue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#F7F3EC;border-bottom:1px solid #E3BE85;\"\u003e\n\u003cth style=\"padding:9px 12px;text-align:left;width:42%;\"\u003eAge\u003c\/th\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003e14 and up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fff;border-bottom:1px solid #E3BE85;\"\u003e\n\u003cth style=\"padding:9px 12px;text-align:left;width:42%;\"\u003eModel reference\u003c\/th\u003e\n\u003ctd style=\"padding:9px 12px;\"\u003eRobotime ROKR · LG501\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/details\u003e\n\u003cdetails style=\"border-top:1px solid #E3BE85;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;font-size:16px;padding:14px 4px;list-style-position:inside;\"\u003eWhat's in the box\u003c\/summary\u003e\u003cul style=\"margin:4px 0 16px;padding-left:22px;\"\u003e\n\u003cli\u003e254 pre-cut wooden parts\u003c\/li\u003e\n\u003cli\u003e10 marbles\u003c\/li\u003e\n\u003cli\u003eIllustrated step-by-step booklet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot included:\u003c\/strong\u003e wax for the gears\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/details\u003e\n\u003cdetails style=\"border-top:1px solid #E3BE85;border-bottom:1px solid #E3BE85;margin:0 0 24px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;font-size:16px;padding:14px 4px;list-style-position:inside;\"\u003eBuild tips\u003c\/summary\u003e\u003cul style=\"margin:4px 0 16px;padding-left:22px;\"\u003e\n\u003cli\u003eKeep a candle stub or crayon to wax the gears: a dry gear train is the usual reason a lifter stalls.\u003c\/li\u003e\n\u003cli\u003eTest both lifts together: one that runs alone can still bind when the other is loaded.\u003c\/li\u003e\n\u003cli\u003eCheck the funnel sits level before building the track around it.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/details\u003e\n\u003cdiv style=\"background:#241C15;color:#f7f3ec;padding:24px 26px;text-align:center;border-radius:6px;margin:0 0 18px;\"\u003e\n\u003cp style=\"font-size:18px;font-weight:600;margin:0 0 14px;line-height:1.4;\"\u003eSix hours to build. Then you turn the handle and watch it decide.\u003c\/p\u003e\n\u003cp style=\"font-size:14px;line-height:1.7;margin:0;color:#e3be85;\"\u003e✓ Ships from the US in 4 to 7 business days\u003cbr\u003e✓ Free shipping on every order\u003cbr\u003e✓ Missing or damaged part? We replace it\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:12.5px;line-height:1.5;margin:0;color:#6b5a4a;\"\u003e\u003cstrong\u003e⚠ WARNING:\u003c\/strong\u003e CHOKING HAZARD. Contains marbles and small parts. Not for children under 3 years. Recommended for ages 14 and up.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ROKR","offers":[{"title":"Default Title","offer_id":41868302057605,"sku":"LG501","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/8683\/5589\/files\/9c6102d3857a1c8dc107e14debb8dead.jpg?v=1789858502","url":"https:\/\/icraftpuzzles.com\/products\/switchback-wooden-marble-run-kit","provider":"ICraftPuzzles","version":"1.0","type":"link"}