BowJax Ultra II are some of the best bow string silencers as they slide on the string, not threaded through it. So perfect for endless loop bow strings. Long-lasting and reduce noise and vibration by surrounding the bow string with dampening material. They are a favorite of many bowyers and bow string makers.
BowJax Ultra II do not decrease your bow's velocity. Testing shows a usual increase of 1 to 3 fps. The Ultra II Silencers weigh approximately 19 grains each. Sold by the 4-pack.