Meilong 6×6 cube is an entry-level 6×6, classic 65MM size, net weight is less than 180 grams, super cost-effective, 6×6 level entry first choiceHigh-quality ABS material, smooth turning and excellent rotation Great corner cutting,tension adjustable.Train your brain and improve your memory Activate kids’ imagination and creativity.Testing kids’ mental skill and patience.Adjustable Elasticity-Screws and springs inside make the cube adjustable, you can get a satisfying hand feel depending on personal preference.doesn’t corner twist as often nor does it lock up. Difficult to pop, good control of the cube, comes pre-lubricated and tensioned. Definitely a good choice for you to improve personal record in competitions. This cube can be used for international competitions.The Magic Cube Bundle can foster your kid’s sense of space and enhance a child’s memory. Solve it when each side matches. You can challenge the different difficulty level of the cubes at one time. Enjoy hours of fun with you family and friends