Bow Jax BowJax Magnum RizrJax Dampeners Green. They screw together and fit most machined aluminum risers. Comes with large rubber washers to cushion the grip and provide an extra measure of bow dampening. Specifications for Bow Jax BowJax Magnum RizrJax Dampeners: Manufacturer: Bow Jax Color: Green Features of Bow Jax BowJax Magnum RizrJax Dampeners: Fits compound bows with 1/2" cut out holes in the riser Fit most machined aluminum risers Soft polymer material dampens limb vibration and noise Install easily with provided screws Easily installs without a bowpress Package Contents: Bow Jax BowJax Magnum RizrJax Dampeners Bow Jax 1027green: BowJax Magnum RizrJax Dampeners Green