Item Type: Record Weight Stablizer Material: Aluminum Alloy Function: Used to Detect Whether The Record Player Is Smooth, Whether In The Same Level, Speed Measurement Stroboscope: 50Hz, 33rpm/45rpm Size: Diameter: Approx. 77 mm/3.0in Height: Approx. 40 mm/1.6in Sleeve Hole Diameter: Approx. 7.2mm/7.3in Sleeve Hole Depth: Approx. 30mm/1.2in Scope of Application: Suitable for Vinyl Record Player Package List 1 x Record Weight Stablizer 1Premium Material: This LP vinyl turntable disc stabilizer is made of high quality non magnetic aluminum for durability and long service life. 2Good Performance: Resonant vibration, stable speed, reduce noise, provide pure signal retrieval, provide realistic sound reproduction. 3Superior Sound Quality: Maintain stability and improve sound quality. The piano notes become crystal clear, the middle notes are vibrant and the vocals are lifelike. 4High Applicability: The main axle hole fits most existing records (can accommodate 7.2mm/0.3in diameter 30mm/1.2in height spindle). 5Better Signal: It can improves stereo image and focus, stabilizes audio image, and it can provides better signal when vinyl record player is operating. 6General Use: Laser engraved stoner scale is fadeless. Universal support 50Hz and 33rpm/45rpm. And it can display LP disc speed.