Features 1.Improve Sound Quality: The main function of record weight stabilizer is to suppress or tune the vibration of discs and turntables, increase stability and improve sound quality. It improves the sound quality of your recordings, allowing you to enjoy a cleaner sound. 2.Parameters: The bottom diameter for LP disc stabilizer is 76mm/2.99in, the height is 34mm/1.34in, the product weight is about 280g/9.9oz, and the maximum speed is 50Hz45rpm. 3.High Accuracy Bubble Leveler: The disc stabilizer has a built in high accuracy bubble leveler to test if the work surface is on a level surface and to show you the speed of the vinyl disc. 4.Universal to Use: The vinyl turntable disc stabilizer has a spindle bore that fits spindles up to 7 mm/0.28in in diameter, making it ideal for most existing for LP discs. 5.Premium Material: The turntable disc record stabilizer clamp is made of premium metal for ruggedness, wear and corrosion resistance, and long life. specificationItem Type: Record Weight Stabilizer Material: Metal Size: Bottom Diameter: Approx. 76mm/2.99in Height: Approx. 34mm/1.34in Aperture: Approx. 7mm/0.28in Maximum Speed: 45 rpm PackageList1 x RecordWeightStabilizer NotePlease allow some error in manual measurement.