About this projectSpeed Cube - a timeless classic puzzle game that will take you into a magical world whether you are a beginner or a pro NEW SPRING DESIGN - Lets you fine tune the tightness of the cube, you will be able to get speed, stability and smoothness of the cubePROFESSIONAL AND SUPERIOR PERFORMANCE - GREAT CUTTING, ADJUSTABLE TENSION, EASY CONTROLS, MORE FUN AND FUNCTIONALITY3-D Puzzle Cube - Made of 100% ABS material, non-slip matte sticker, harmless to humans and the environment, kids love itPERFECT GIFT - Cubes can develop people's sense of space and enhance your memory, perfect for Christmas, holiday, birthday giftsProduct size 5.5*5.5*5.5cm