Main Features:
1. Great toys to develop one's creative ability and handling ability
2.Small dynamic and static friction coefficient ensures safe and smooth rotation
3.Good abrasion resistance and texture in hand
4.The interface is smooth and each corner has a chamfer
5.It is popular in coffee shops, waiting rooms and other places
6.You can turn it into hundreds of shapes, figures and models, such as bird, duck, tortoise, basket and so on