LIKIQ 2x2x2 Sticker Speed Cube Antistress Puzzle Black Magic Cube 2&times;2 Cube antistress: High quality adjustable spring, smooth and comfortable rotation Classic Puzzle Game increase intelligence of kids, release working pressure of adults, help prevent a decline in memory of the elderly Color: black; Made with eco-friendly ABS material, non-toxic, reliable, and lightweight and comfortable in hand Magic puzzle Cube Dimension: 50mm50mm50mm Speed Cube Net Weight: 81.8g