Letrater PL Cine Cap is made of Aerospace Grade Aluminum Material, with CNC & Hard Anodizing Craft. It can protect your cine camera from dust and scratch. As well, if you have an Pl lens adapter, it can be used for the lens side of this mount adapter, you can take a reference of our another item Letrater PL-E; Black Color; You can buy 1pc or 2pcs per set;