Eco-Friendly Material - Stickerless frosted surface, environmentally friendly ABS material, non-toxic and harmless, molecular structure stability, impact resistance, no deterioration of performance due to long-term use. Our materials are internationally recognized safety and environmental protection materials and have obtained CE certification. Please feel free to purchase. Multifaceted Development - The magic speed cube can promote your child's sense of space and improve a child's memory; Playing this in your spare time can release adults' work pressure, while helping to prevent memory loss in the elderly. This speed cube game will never go out of style and keep your kids away from TV/Ipad. Unique Features - Superior corner cutting, adjustable tension. Difficult to pop, good control of the cube, excellent stability. The edges are contoured and the center piece is a circle, making it much easier and faster to twist. Perfect Gift - Whenever and wherever you are, you can try to stretch your brain capacity or spend some leisure time with your loved ones. This classic puzzle game will never go out of style. The ultimate Christmas gift/birthday gift for children, friends, family members.