ENVIRONMENTAL PROTECTION MATERIAL - Stickerless surface, increase toughness, easy to grip, no scratch. ABS material, non-toxic and non-harmful, molecular structure stability, impact resistance, no deterioration of performance due to long-term use.FOR ALL AGES - The 4x4 Magic Cube is the 3D Puzzle with bright colors. Lightly hold the magic cube on both sides, turn and rotate the sides of the cube so that each of the six faces has only one color. Suitable for beginners, intermediate and advanced.UNIQUE FEATURES - Top corner cutting, adjustable tension. Hard to burst, good control of the cube, excellent stability. The edges are shaped and the center piece is a circle that makes turning much easier and faster.MULTIPLE-FACETED DEVELOPMENT - The Magic Cube can promote your child's sense of space and improve their memory; Playing this in your spare time can relieve the working pressure of adults, while helping to prevent memory loss in the elderly. This Speed Cube game will never go out of style and keep your children away from TV/Ipad.PERFECT GIFT - High quality and outstanding rotation, good fault-tolerant performance, includes an English instruction manual. Whenever and wherever you are, you can spend leisure time with your loved ones. Christmas/Birthday gift for children, friends and family.