The A.S.J.M Slipmats are created from medium density felt and weigh in at 16oz, which is the industry standard. Our slipmats are glazed on the printed side giving them some extra slip, and they are firm to touch without being too rigid. They are a perfect fit for both 7 inch and 12 inch turntables and are great for mixing and scratching standard records or timecoded vinyl.Our slipmats have a very high resistance against stretch and tear especially in the centre hole area, making them last longer than most other leading brands.