The QiYi Windmill Cube is a variation of the classic 3x3 shape mod from QiYi.<br>This puzzle is based on a speed cube design, meaning that it has an adjustable core and can perform some small corner cuts.<br>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<br>Solving puzzles and brain teasers are important activities to teach kids to work hard at solving complex problems and foster your kid's sense of space and enhance a child's memory.Whether you're trying to stretch your brain capacity or spending some leisure time with your loved ones, this would be a great gift for your kids.<br>Perfect Christmas gift/ birthday gift for kids. This classic puzzle game will never go out of style