Durability is no longer an issue with the new Everlast String Leech from Limbsaver. The Everlast gives you all of the great sound and vibration dampening characteristics of the older string leech models with far more durability for shot after shot performance. This new string silencer incorporates NAVCOM technology that has been proven in the field. The Everlast String leech will require a bow press for installation because they are inserted between the fibers of the bow string. Pack of 2.