Left-side thumb pad sets slightly out from the frame to move your thumb away from most popular thumb guards and scope mounts. Large, gracefully-contoured shape with serrated top surface provides an easy-to-reach support for shooters that use a high-thumb hold. Thinner, right-side thumb pad gives true, ambidextrous operation and is less likely to snag. Mfg: Les Baer Custom SPECS: Steel. Blue, matte finish or stainless steel (S/S) polished finish. Contact Areas: Left Side - .960" (24mm) long x .400" (10mm) wide. Right Side - .960" long x .150" (3.8mm) wide.