For kids, it can develop their brain and logic thinking ability
For adults, it can release their pressure after work
Small dynamic and static friction coefficient ensures safe and smooth rotation
The interface is smooth and each corner has a chamfer

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3.39 inch
Height : 2.91 inch
Length : 3.39 inch

Item Weight: 0.32 ounce (View shipping rates and policies)
Shipping Weight: 0.32 ounce (View shipping rates and policies)

ASIN : B00NICV470