Original Accu-Riser 4000 Cheek Rest - Strap or Screw-On Fit - Right Handed. Positions your aiming eye for alignment with scope sights. Molded hard rubber black cheek rest. Strap-on model mounts slip free with double stick tape and velcro strap. Screw-on model mounts permanently with screws. This Cheek Rest is for Right Handed Shooters Only.