جعبه دنده پلاستیکی

جعبه دنده پلاستیکی

Description:
This thing is around us, but it is hidden in the toy!

Features:
Body size: 34mm*13mm*23mm
Double shaft diameter: 2mm (can be used with a tire to make a car, etc.), 
Total length is: 60mm, 
Length of each side of the shaft: 23mm
Top shaft diameter: 1.5mm, shaft length: 14mm
The blue square gear column in front size: 2*2mm, extension length: 4mm