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. Made to fit most shotguns, rifles and muzzleloaders having straight comb stocks. Some stocks may be too wide for riser to fit precisely without gaps. Not recommended for bolt action rifles.