Features: <br>1. Silicone vibration damping ring, having excellent damping effect. <br>2. Resistance to high temperature of 240 ℃, non-toxic and eco-friendly. <br>3. Effectively reduce the electron tube vibration. <br>4. Suitable for 12AX7/12AU7/ECC88 and other small diameter 20.5mm / 0.81in nine pin tube. <br>5. Easy and convenient for installation, having stable performance. <br> <br> <br>Specifications: <br>Condition: 100% Brand New <br>Material: Silicone Gel <br>Color: Orange <br>Temperature range: 240℃ <br>Diameter: Approx. 24mm / 0.9in <br>Inner Diameter: Approx. 18mm / 0.7in <br>Compatible: for 12AX7 12AU7 12AT7 12BH7 EL84 <br>Fitment: fit for Suitable for 12AX7/12AU7/ECC88 and other small diameter 20.5mm nine pin tube <br>Using Method: Directly set on the tube body, the general set of three or four <br> <br> <br>Package List: <br>20 * Tube Damper Ring<br>1、Silicone vibration damping ring, having excellent damping effect. <br>2、Resistance to high temperature of 240 ℃, non-toxic and eco-friendly. <br>3、Effectively reduce the electron tube vibration. <br>4、Suitable for 12AX7/12AU7/ECC88 and other small diameter 20.5mm nine pin tube. <br>5、Easy and convenient for installation, having stable performance.