CuberSpeed QiYi DNA concave 3x3 Stickerless Speed Cube Puzzle DNA concave 3x3x3 Stickerless Cube CuberSpeed QiYi DNA concave 3x3 Stickerless Speed Cube Puzzle DNA concave 3x3x3 Stickerless Cube More than just a cube, the QiYi DNA Cube (Concave) is a work of art. Along with vibrant stickerless bright shades, this puzzle also features an intricately molded, lattice design on each of the pieces as well as a novel, concave shape. This is a 3x3 with a fantastic design on the outside, which also has a good speed solving mechanism on the inside. The traditional stickers have been replaced with original and eco-friendly ABS material, which mean no fading, peeling or cheating! This is a Frosted Surface Cube.Feels more texture and avoid the scratches after the long-time using.Whole new vivid color work more effectively and more easier to recognize Perfect Christmas gift/ birthday gift for kids. This classic puzzle game will never go out of style.