ROKR Marble Night City LGA01

Items Included: Plywood, Steel ball, Acrylic board

Number of Pieces: 294

Difficulty Level: ★★★★☆☆

Assembly Time: About 7h

Age: 14+

Package Size: 317*233*48mm

Assembly Size: 325*214*228mm

STATIC BALL STORAGE MODULE – This marble run comes with different types of tracks. As you rotate the handle, the steel balls will run endless cycles along the tracks.


Marble Night City Story

It takes “future technology” as the creative source and the orbital ball as the carrier to show the rigid mechanical structure to the public and feel the order pleasure of the steel ball rolling. It adopts a wood grain dip dyeing process and metal screen printing technology to dye the wood board with high-grade gray-black while retaining the original wood grain, giving it a metal texture and an overall profound future style. High permeability acrylic materials are innovatively added to achieve the “suspended” track effect to show more transparent expressiveness. Additionally, the traditional mortise and tenon technology and gear transmission combination are adopted so that the trackball can operate without power. More tracks are added so players can stimulate brainstorming, and feel the precision engineering structure.

Operating Instruction


Take out the wooden pieces and assemble the model following the instructions.


Rotate the handle as shown. Put the steel balls anywhere.


The steel balls roll along various tracks endlessly.


  1. Ensure four slots would be assembled in the right place on top of the spiral track.

  2. Ensure Part b would be assembled in the right place, following Step 23 in the instruction book. 

  3. Polish the thorn on the spiral track inner ring with sandpaper.

Ensure all the slots of tracks would be pressed into the right place.

Product Details

Funnel-style track

Balls spin down with accelerated speed, similar to the tornado effect.

Suspended track

Change the direction of the rolling balls.

Acrylic board

Enhance the transparency of the model and prevent balls falling off.

Ball storage device

Provide a stationary scene in contrast to the dynamic rolling balls on the track.

Metallic ink printing

Add metallic texture to the model.

Wood-dying technique

Create a tactile dark grey surface.

Infinite Running Cycle

The force of gravity and gear transmission provide driving power for balls. Therefore, by just rotating the handle, the steel balls can roll endlessly along the track without electricity.

Raw Materials & Technology

  • ROKR R & D team preferred customized parts for better durability.
  • Hundreds of suppliers from all over the world provide adaptive parts for a series of products, which are deeply customized to meet the design functions.
  • High precision steady-state laser cutting is adopted, and the process error is controlled within 5um, which is equivalent to 1 / 20 hair diameter.
  • Guarantee that all parts can fully fit and assemble, and each bayonet fits tightly.
  • We choose basswood from the high latitude of the northern cold zone, which is strong and durable.
  • The wood grain is fine and uniform, showing silk luster, layered, wear-resistant, corrosion-resistant and not easy to crack.

Detailed Instruction Book

There are clear and understandable pictures and texts in the manual. Take out the corresponding numbered pieces and assemble them as pictures. In addition, we also have a detailed assembly video, which is posted on the official YouTube account.

Exercise your Brain

Hands-on way to exercise logic thinking and fine mental skills. In this process, kids would be more patient and prudent! 

It brings tremendous sense of accomplishment and can show it off to friends and family.

A Great Gift and Worthy of Display

The best gift to someone special gift or home decor for anyone. It will make a memorable gift that will be cherished forever. No one will refuse such a fairy house gift!

Rewarding Assembly

The delicate model needs your patience and concentration. But the grand result will be rewarding.

Video for this product

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