DIY hand crank bubble machine experimental toy is made of quality wooden material, which is durable and wear resistant, can be used for a long time.

Children can learn physical knowledge, develop patience and concentration, and promote fine motor skills.
Complete DIY science educational toy kits set. It needs youself to assemble the parts, you can enjoy the Diy at the same time.
Great for DIY subject, science education, development of hobbies and interest.

Specification:
Material: Wooden
Size Chart:
10.5cmx10.8cmx11cm/4.13inchx4.25inchx4.33inch

If you are interested in this kit ,please contact with us!