The Bowjax Ultra Jax II String Silencers #1036 require a bow press, and slip over the bow string to effectively dampen the noise, vibration, and oscillation that occurs after the shot. Bow does not loose velocity. Testing shows a usual increase of 1 - 3 fps. For compound bow users that are looking for even more dampening ability, attach an Ultrajax II to your cable.

Weighs 19 grains each, includes 4 per package.