"The Pine Ridge Archery Nitro Split-Limb Dampeners are easy to install without tools or a bow press, giving you the performance you want without any hassle. The durable material can be installed into narrow limb gaps, delivering vibration-dampening performance on compound bows and crossbows. Includes 2 dampeners. Max gap: 1.2"". Durable material Simple, tool-free installation Dampens vibration for quiet performance Fits narrow limb gaps, up to 1.2"" Compatible with compound bows and crossbows"