Ahyuan Shengshou 3x3x3 Speed Magic Cube It's a true speed-cube - very slick and fast out of the box. Very smooth out of the box,Extremely fast with excellent cornering. Made from eco-friendly ABS material, non-poisonous material and light weight, harmless to human and environment. Playing with intellectual toys, no matter how often, always strikes one as something fresh. And so it develops one's intelligence and fosters talents, improve one's memory and hand flexibility. Perfect Gift for Children! No one falls out of love with the Speed Cube. They are always awesome for both kids and adults, you can take them anywhere. Our guarantee to you.If you are not completely satisfied, please do return it for a full refund, no questions asked