Features: Stability: This Recorder stabilizer is to maintain the stability of the record during playback to ensure clear sound without skipping stitches or vibration. Weight Designing: from aluminum, with durability and excellent manufacturing process, to ensure that it with long service life, not easy to be damaged or failed, and help the record more stable rotation. Vibration damping: A good Recorder stabilizer designing may also have vibration damping to reduce the effects of mechanical vibration on record playback and improve sound Versatility: Most Recorder stabilizers to be versatiled and can be used with most 7inch phonoed records. Easy installation: Simple designing, easy installation and remove, users can easily place it on the record center hole without additional tools. Specifications: Diameter：about 37mm/1.46in Thickness：about 2mm Center hole：about 7.5mm Color：Black/Silver Component：Aluminum Speed:45RPM Package Includes: 1PC 45RPM Record Adapter note: Please allow 1-2cm errors due to manual measurement. Pictures may not reflect actual color due to different monitors.