CHALLENGE THE ANCIENT WONDER - Pyraminx is the second best-selling puzzle toy in the world after the 3x3 cube. Pyraminx has four triangular faces which are all divided into nine identical smaller triangles. The solution is definitely simpler than a 3x3 cube method but not so obvious, so you might think a bit about restoring. Sure to delight your kids as a time-killing creative thinking puzzle READY TO PLAY SAFER AND EASIER - Monster Go cubes are sticker-free, providing a comfortable touch and smooth turns. Made of eco-friendly plastic with phthalate and lead free materials, all cubes are well tested, pre-lubricated and tensioned before packing. They're ready to play right out of the box PHYSICAL AND MENTAL BENEFITS - The Pyraminx cube is considered a popular educational toy. By playing this color matching puzzle, you can improve reflexes, finger agility, and eye-hand coordination. It can also help develop spatial recognition, problem solving skills, learn focus, patience, perseverance, etc. Give your children a pyramid cube and they will thank you in the future WE PROVIDE THE BEST QUALITY - The core, tension and tile structure of Monster Go cube is based on technology from GAN, a brand that offers first-class cubes to break speedcubing world records. While the quality remains amazing, it has been redesigned to offer a vibrant color palette, a body that won't crumble, and scratch-resistant surfaces that are suitable for the nastiest boys and girls