Funs&reg; Shuang Ren V2 3x3x3 57mm Black Speed Cube Puzzle FUNS 3x3 Improve from V1, get rid of scratchy feeling Smooth out of the box, lube and tension for better turning Difficult to pop, good control of the cube Fully functional spring structured for fast turn Sticker PVC, yellow/white, red/orange, green/blue