The Ex-act Fit Suppressor was engineered to drastically reduce noise and vibration and increase your stealth in the woods. Easy to apply and ultra-durable, they are built to withstand the energy from high-powered Excalibur crossbows..Features: Reduce noise up to 3dB Reduce shot vibration up to 30%UV and Weather ResistantNo tool installation Excalibur Exact Fit Suppressors 74473