Description:5pcs 19mm Tube Silicone O-Rings Dampers Silicone for 12AX7 12AU7 12AT7 12BH7<br>Specification:<br>   Material: Silica gel   Color: orange   Diameter: 25mm   Inner diameter: 19mm   Temperature range: 240\u2103   Fit for: 12AX7 12AU7 12AT7 12BH7 EL84<br>  Features:<br> Bile duct electronic tube special silicon vibration damping ring， non-toxic environmental protection，  effectively reduce the electron tube vibration， microphone effect and reduce the noise， making the sound more clean， the effect is obvious. The diameter is about 19mm. It can fit vaccum tube 12AX7 12AU7 12AT7 12BH7 EL84.<br>  Package Included:<br> 5 x 19mm Tube Silicone O-Rings<br>  More Details: