The Everlast Leech is designed to give you both unparalleled performance and unsurpassed durability. The simple-to-install leech stops string oscillation, reduces vibration, and incorporates NAVCOM technology. This product is designed to exceed your expectations of performance with the guarantee it will last shot after shot. Length: 1.24". Width: 0.80".Thickness: 0.30". Weight: 0.05 oz.