Friendly Enviromental Material And Bright-coloured Sticker: The speed cube is made of non-toxic ABS material and long lasting non-fading stickers, it is no harmful for environment. Ideal for kids early cognitive development.^ Effortless Turning & Smooth Play: Improved anti-pop technology and structure for extremely fast and smooth cornering, durable design, comes pre-lubricated and tensioned.^ Dual Irregular And Regular Design : Not only include 2x2x2 and 3x3x3 magic cube, but also its 3x3x3 pyramid irregular cube is harder than regular magic cube.^ It is a shape mod in which the pieces shape shift making it look like a mess, but once you solve it, it magically becomes perfect cube or pyramid again.^ Culminating Gift Idea And Endless Exercise: Ultimate gift for kids, friends, family members, beginners and professionals; provides hours of enjoyable game play.