Funtion&Features:Chain Gearing/The Role Of The Axis/The Role Of The Idler Gear,3 IN 1
Three Types：Windmill,Bomb Device and Small Windmill;You can rotate it by your hand after done.
Science Popul Srisation Teaching Aids
Environmental protection ABS, non-toxic harmless；EN71 &ASTM Certification

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 9.2 inch
Height : 2.6 inch
Length : 13 inch

Item Weight: 4.48 ounce (View shipping rates and policies)
Shipping Weight: 15.2 ounce (View shipping rates and policies)

ASIN : B01JLV0A1C