The Monster Jax are used by top bow manufacturers to eliminate limb vibration because they are the most effective dampeners available. By utilizing 6 arms that vibrate at different frequencies the Monster Jax is able to eliminate virtually all vibration encountered in a bow limb. These dampeners are held on by durable double side tape so they are a snap to put on your bow. Serious archers know the importance of killing vibration; don’t trust your hunt to anything but the best!