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
Wooden 3D puzzle cello music box kit, 199 pieces, natural finish, gear-driven bow mechanism, assembled size 9.3 x 7.3 x 8.1 inches

ROKR

ROKR Magic Cello 3D Puzzle Music Box 199 PCS 1/5 Scale STEM Toy

SKU CH-BCZP-MRG8S

A 199-piece wooden kit builds a 1/5 scale cello that plays Nocturne Op.9 No.2 through gear-driven bow motion when wound

  • Recommend Age14
  • AgeAdult
  • GenderUnisex

Style Magic Cello-Colorful

Struck-through versions exist but are not stocked here.

  • 199-piece build strengthens fine-motor skills and spatial reasoning
  • Spring-driven gear train plays Chopin's Nocturne Op.9 No.2 automatically
  • 1/5 scale wooden cello with exposed mechanism doubles as desk display
  • Tool-free pre-cut panels assemble in two to three hours
  • Suitable for ages 14 and up, unisex gift for hobbyists

ROKR Magic Cello 3D Puzzle Kit

The ROKR Magic Cello is a 1/5 scale wooden model kit containing 199 pre-cut pieces that assemble into a working music box. It is designed for hobbyists aged 14 and above who enjoy hands-on mechanical building projects and decorative desk displays. Assembly requires no tools or glue and takes approximately two to three hours using the included pictorial instruction book.

Gear-Driven Mechanical Music Movement

The model operates entirely through a wind-up spring mechanism and gear transmission hidden within the transparent structure. Turning the key behind the cello activates the bow to play the melody "Nocturne, Op.9, No.2 in E-flat" without batteries or electronics. The movement runs for a limited duration per wind, offering a tactile demonstration of mechanical energy transfer and gear timing.

Pre-Purchase Setup Checklist

Verify that the intended builder meets the minimum recommended age of 14 due to small parts that pose a choking hazard for children under three. Ensure a clear, flat workspace is available for the two-to-three-hour build process. Confirm the assembled dimensions of 9.3 by 7.3 by 8.1 inches fit the intended display shelf or desk area. The package weighs 1.02 pounds and includes all wooden sheets and instructions.

Highlights

  • 199-piece build strengthens fine-motor skills and spatial reasoning
  • Spring-driven gear train plays Chopin's Nocturne Op.9 No.2 automatically
  • 1/5 scale wooden cello with exposed mechanism doubles as desk display
  • Tool-free pre-cut panels assemble in two to three hours
  • Suitable for ages 14 and up, unisex gift for hobbyists

Specifications

Recommend Age14
AgeAdult
GenderUnisex

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does the gear-driven music box make any audible mechanical noise while playing the Nocturne melody?

The spring-driven gear train runs without a motor, so the only sound is the music-box tone itself; no electric hum or fan noise is produced.

What tools or adhesives must I already have before starting the 199-piece wooden build?

None — the pre-cut wood sheets fit together by friction and the kit includes the illustrated manual, so no glue, batteries or tools are required.

Will the assembled 9.3 × 7.3 × 8.1 inch cello fit on a shelf alongside standard 1/5 scale model instruments?

Yes, its 1/5 replica proportions match typical 1/5 scale display pieces, so it sits consistently with other models of that scale.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.