The YJ TianYuan O2 Cube V3 is the most complicated puzzle in this series. Along with the centers and edges which are solved by turning the center section, this one also has corners on the outside that can be solved independently. See if you've got what it takes to solve this unique puzzle from YJ!<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>Perfect for testing your mental skills and challenging your patience.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<br>Making you a happy customer is our main goal. Anything else and we’ll process a full money-back refund for you.<br>Perfect Christmas gift/ birthday gift for kids. This classic puzzle game will never go out of style