Material：ABSInner diameter ：32MMNet Weight：11g each pieceColor：Black Use：wired microphoneFeatures: Microphone Slip Holder. It is made of rubber and it can protect your microphone from shocks, bumps, and falls. Also doubles as shock mount for your microphone.Package include:10 pieces Microphone Slip Holder RollerWe manufacture all kinds of instrument parts and product The direct model so that our price is very lower with high quality.