Bowjax Ultrajax Ii String Silencers Red 4 Pk.

Ultrajax II string silencers reduce noise and vibration by surrounding the string with dampening material. Bow does not lose velocity. Testing shows a usual increase of 1-3 FPS. Weight: 19 grains.

Features:
Slips over the string to dampen vibration
Weigh 19 grains each