1. Best compatibility: This adapter kit is designed to fit seamlessly with most reel-to-reel tape recorders 2. Enhanced audio quality: Each gasket is precision-engineered to enhance audio fidelity, giving your vintage or modern tape recorder the best sound quality 3. High temperature resistance, good thermal conductivity, and electrical insulation 4. construction: Made of premium materials, these adapters are built to last, ensuring long-term performance and reliability 5. Easy to install: The adapters are easy to install, making it easy to upgrade your tape recorder for improved performance and sound quality Name: Hub Adapter Spacer Colour:black Material:Silicone size:1.1mm Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 2 * Hub Adapter Spacer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.