The Willking 6x6 Mastermorphix is a 6x6 shape modification with only 4 sides. This mind bending, shape shifting puzzle is sure to give the most seasoned puzzler a challenge!The Anti-stick Degin can prevent the cube viscosity,make the cube solve smoothlt.Optimized parts of the round corner pieces,makes work coordinate effectively.enhance the corner cutting ability,make it more smooth when it solves.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.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.ULTIMATE GIFT IDEA - Ultimate gift for kids, friends, family members, beginners and professionals; provides hours of enjoyable game play; perfect for reducing stress, exercising your brain, improving patience, memory and practicing hands-on dexterity, mental skills.