Wood Science Experiment Set DIY Assemble Intellectual Technology Toy Learning Fun Trackball Toys Projects Girl Kids Boy

Description: Hands on Ability: Fun trackball toys, exercise children's hands on ability, toys, models for children's educational technology projects. Nut: The nut bears the weight and controls the direction of the track. Track: Ramp track, glass ball rolls smoothly. Fence Board: Comes with a storage box to avoid the loss of glass balls; Gasket: A gasket is attached to the bottom, anti slip and anti Educational Learning Toy: Suitable for school project,, mentary school students, kids, children. Specification: Material: Wooden Size Chart: Size: 20x16.5x7cm/7.87x6.50x2.76inch Package Includes: 1 Set Kit Model Trackball Toys (The Received Goods Are in Loose Pieces and Need to Be Manually by Yourself) Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.

Hands on Ability: Fun trackball toys, exercise children's hands on ability, toys, models for children's educational technology projects. Nut: The nut bears the weight and controls the direction of the track. Track: Ramp track, glass ball rolls smoothly. Fence Board: Comes with a storage box to avoid the loss of glass balls; Gasket: A gasket is attached to the bottom, anti slip and anti Educational Learning Toy: Suitable for school project,, mentary school students, kids, children.