Switchback: Wooden Marble Run Kit, 254 Pieces
Switchback: Wooden Marble Run Kit, 254 Pieces
Free US shipping over $69 · Ships from the US in 4 to 7 business days
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Arrives soon! Get it by Nov 3 - Nov 10 if you order today
Does ICraftPuzzles offer free shipping?
Yes, shipping is free on orders of $69 or more. Below that it's a flat $5, shown at checkout before you pay. No hidden fees, and no customs or import charges: your order ships from within the United States.
We currently deliver to the continental US only: the 48 contiguous states and DC.
Where can I get coupons, and how do I use them?
Check the banner on our homepage for what's running now, and sign up for our emails. Subscribers get offers before anyone else.
To use one: enter the code at checkout and click Apply. If a kit is already discounted and the sale price beats the code, you'll pay the sale price. We always charge you the lower of the two.
What if I want to return my order?
You have 30 days from delivery. Return the kit unused, complete and in its original packaging, and we'll refund you in full, with no restocking fee.
Arrived damaged? Keep the packaging and email support@icraftpuzzles.com with your order number and a photo. We'll sort it out without asking you to send anything back. Full detail in our refund policy.
What if some parts are broken or lost?
Email support@icraftpuzzles.com with the kit name, the part number from the manual and a photo. We open the replacement claim with the manufacturer and follow it through. You never have to deal with them yourself.
Reported within 30 days of delivery, replacements for anything damaged or missing on arrival are free. Lost a piece later, or broke one mid-build? Send the request anyway: these are often covered too, and if there's a cost we'll tell you before anything is charged. See our replacement parts page for the full process.
Turn the handle and watch ten marbles spiral down a giant funnel.
A 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.
Why you'll love it
- ✓ Physics you can watch. The tighter the spiral, the faster the marble: the same trick a skater uses to spin.
- ✓ Two lifts, one crank. A wheel lifter and a stair-step elevator work together off the same handle.
- ✓ Every run is different. The flip-flop switch splits the flow, so marbles take different routes.
- ✓ Ten marbles included. More than most kits: enough to run several at once.
Great gift for puzzle lovers, engineers, physics fans and anyone who needs a screen-free evening project.
Specifications
| Assembled size | 10" W × 9.3" D × 7.3" H |
|---|---|
| Parts | 254 |
| Build time | About 6 hours |
| Difficulty | Advanced |
| Drive | Hand crank only, no motor |
| Power | None |
| Track | Spiral funnel, five rails (two straight, three curved), flip-flop switch |
| Marbles | 10 included |
| Material | Laser-cut wood |
| Assembly | No glue |
| Age | 14 and up |
| Model reference | Robotime ROKR · LG501 |
What's in the box
- 254 pre-cut wooden parts
- 10 marbles
- Illustrated step-by-step booklet
- Not included: wax for the gears
Build tips
- Keep a candle stub or crayon to wax the gears: a dry gear train is the usual reason a lifter stalls.
- Test both lifts together: one that runs alone can still bind when the other is loaded.
- Check the funnel sits level before building the track around it.
Six hours to build. Then you turn the handle and watch it decide.
✓ Ships from the US in 4 to 7 business days
✓ Free shipping on every order
✓ Missing or damaged part? We replace it
⚠ WARNING: CHOKING HAZARD. Contains marbles and small parts. Not for children under 3 years. Recommended for ages 14 and up.
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