Ohuhu 3X3X3 Stickerless Speed Cube Puzzle Cube Magic Cube Puzzle, Anti-POP & Durable FAST & SMOOTH TURNS: Anti-jam, twist and turn corners smoothly, reduce your personal record time ANTI-POP: Pop-resistant and anti-pop technology with adjustable tension feature SAFE & ECO-FRIENDLY: Made with ABS material, recyclable, environmentally friendly 3x3x3 SOLID STICKERLESS COLORS: 6 solid colors, never fades or chips FUN & EDUCATIONAL: Exercises your memory and hands-on skills, a perfect educational toy for both kids and adults