Features: The elastic polyester rubber material, elastic, soft with hard, the best way to cushion the impact of the handle, let you look at boxing, zombie customers don’t have to worry aboutAfter a long test, never block out the signal, easy to install, and can be used with the silica gel sleeve at the same timeMaterial: SiliconeCompatible with: for HTC Pro Controller VR HeadsetPackage Included:1 x Protective Case for HTC