Wooden Marble Run DIY Assemble Mechanical Gear Engineering Model Steam Science Experiment Educational Kit Toys for Children

Features:

.Lightweight wood, resistant to falling, durable, laser cut, smooth and burr-free
.Product card slot is accurate, splicing is smooth, explore the fun together, find the corresponding parts on the board, remove the parts along the laser cutting edge, do not use too much force, follow the instructions, splicing parts for model assembly
.After assembling, it can be mechanically oscillated to drive the steel ball to roll through the interlocking gear levers and rails (prepare 1 x AA battery and glue by yourself)
.Logic thinking ability, hands-on ability and concentration can be exercised during the assembly process, suitable for over 14 years old

Specifications:

.Color: As Shown
.Material: Wood
.Product Dimensions: 19.4 x 16 x 10cm
.Packing: OPP Bag

Package Content:

.32 x Wooden 3D Puzzles
.5 x Steel Balls