4 - Pk. BowJax SlipJax Dampeners. Why settle for a string dampener that wasn"t designed to "hang" with your super fast compound bow? BowJax has tackled this problem head-on with the SlipJax Dampener! Weighing in at just 8 grains, it"s lighter, stronger, and designed to keep up with your fastest bows and outperform the competition! Choose blue, pink or red. State Color, as available in the Shopping Cart below. Order yours today! 4-Pk. BowJax Slip Jax