We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Unassembled 550-piece birch plywood kit forming a 15x10 inch London landmark marble run

ROKR

ROKR Marble Run Travel London Stem Toy 550 Pieces 15x10 Inches

SKU CH-XP4C-W1F3C

A 550-piece wooden marble run builds working London landmarks with a motorised lift and gravity-powered tracks for ages 14 and up

  • Suggested age14
  • Recommend genderUnisex
  • Age groupAdult

Style Marble Travel London

  • Build iconic London landmarks with 550 precision-cut wooden pieces
  • Self-powered motorized lift creates endless marble loops without batteries
  • Hands-on physics demonstration develops spatial reasoning and engineering curiosity
  • Non-toxic birch plywood construction ensures splinter-free durability and smooth marble flow
  • Finished 15x10 inch model doubles as mesmerizing kinetic desk decor

London Landmark Marble Run

The ROKR Travel London kit is a 550-piece 3D wooden puzzle that recreates Big Ben, Tower Bridge and the London Eye in laser-cut birch plywood. It is designed for builders aged 14 and up who enjoy hands-on mechanical assembly and kinetic desk decor.

Gravity-Driven Motorised Motion

A motorised lift hill raises marbles to the top of the track so gravity can pull them through ramps, tunnels and loops without any batteries. The self-powered system runs quietly on a desk while demonstrating momentum and energy transfer in continuous motion.

Precision Interlocking Construction

The splinter-free plywood pieces lock together without glue or tools, creating a rigid 15x10 inch model that stays aligned during repeated marble runs. The finished structure serves as both a functional physics demonstration and a display piece featuring British architectural details.

How it compares

Measured against everything we stock in STEM Kits & Building Blocks, at today’s prices. Recalculated every night.

Price $43.99
Pricier than about 68% of the 236 comparable items (median $28.99).

Specifications

More details
Suggested age14
Recommend genderUnisex
Age groupAdult

Other versions of this model

3 more in the same range

Questions about this item

How do I install the motorized lift hill so the marbles actually circulate?

The motorized lift hill is built from the laser-cut birch plywood pieces and runs without batteries; follow the step-by-step assembly sequence so each gear meshes correctly, because a single misaligned tooth will stop the lift and break the loop.

Which parts will need replacement after repeated marble runs?

The 550 precision-cut birch plywood pieces and metal spheres are designed for lasting durability; only the marbles themselves may eventually wear or get lost, and no other components are identified as consumable.

At what point does the 15x10 inch track hit its limit during continuous operation?

The self-powered gravity system runs until friction or a marble jam halts motion; the first limit is typically a misaligned track joint or debris in the tunnels that interrupts the smooth marble flow.

More in STEM Kits & Building Blocks

Similar items