Ahyuan QIYI Pyramid Stickerless Speed Cube 3x3, Triangle Cube Puzzle FOR ALL AGE - Pyramid Speed Cube Stickerless is the classic colour-matching puzzle thats a great mental challenge at home or on the move. EXCELLENT STABILITY - Great corner cutting ,Tension adjustable.It doesn't corner twist as often nor does it lock up.Difficult to pop,good control of the cube, comes pre-lubricated and tensioned. ERGONOMIC DESIGN - Combines high performance designs with good value.The stickerless pyramid never requires stickers ,Crafted with original and eco-friendly ABS material, non-toxic, reliable, and lightweight and comfortable in the hand, harmless to human and environment. Speed Magic Cube 3-D Puzzle: This 3 Layer Speed Magic Cube is a Smooth Turning/Ttwisting Pyramid Puzzles . It's Easy to Manipulate and is a Little More Intuitive to Solve than a Standard Three by Three Cube Puzzle Excellent Performance for Brain Teasers: This 3x3 x3 Speed Cube 3-D Puzzle can be Used As Traditional Educational Way to Develop Kid's Logical Relationship and Thinking. They are a Mind Teaser of Sorts for Kids or Adults. The Smooth Speed Cube 3-D Puzzle can Encourage Kids Critical Thinking and Problem Solving Strategie and to Use Their Mind to Solve a Mystery