The Fenix ALG-00 Quick Release Tactical Ring Mount is precision machined aluminum with anodized black matte finish. The adjustable diameter allows for flashlights with a diamenter of 22.5~26mm (0.89~1.02 inches) such as the Fenix TK 32 (2016), TK15UE, TK16, PD32 (2016) PD35TAC, etc. One allen wrench and two spare rubber cushions included. Weight: 56gm / 1.98 oz PRC