Bow Jax MonsterJax LimbDampener Crossbow Solid Limb Black 2 pk. This limb dampener engineered by the experts at BowJax features a patented flexing arm which absorbs energy from the limbs and controls bow jump. The BowJax Monster Limb Dampener helps serious bowhunters and animal hunting enthusiasts get closer to the limbs resulting in even more game. Their natural design and materials ensure the dampener will stay in place and last for years. Whether you want to reduce noise in your bow or reduce unwanted noise in your video game the BowJax Monster Limb Dampener is the tool for the job. Specifications for Bow Jax MonsterJax LimbDampener: Manufacturer: Bow Jax Color: Black Quantity: 2 Package Contents: Bow Jax MonsterJax LimbDampener The solid limb MonsterJax features a patented design. The new monster jax works by utilizing 6 arms that vibrate at different frequencies to dampen noise and vibration. This version of monsterjax are made specifically for a crossbow. The base is reinforced for strength and the dampener is even a different strength more suitable to the strong forces of a crossbow. Easy installation with self-adhesive tape already installed simply pull off the blue backing. Placement: Try placing them about half-way between the riser and the tips of the limb for maximum effectiveness.