UUWEI 3x3x3 Speed Cube,Stickerless Magic Cube, Smooth Turning Puzzle Box with Anti-Sticky Design, The Most Educational Toy to Effectively Improve Your Child\'s Concentration and responsiveness

Stable Structuer: Professional Inner structure improves the cubes overall performance,which makes the cube more stable. Adjustable Elasticity: Screws and springs inside make the cube adjustable,you c...