PurposeFeather Pro Guard PG-15 Blades are specially engineered for performance, quality and safety. Feather is world renowned for their unmatched Japanese quality and exquisite design. For this reason, Feather is the professionals’ first choice for blades. MethodUse Feather Pro Guard PG-15 Blades only with Feather Razors. Why it worksFeather Pro Guard PG-15 Blades are 0.15mm thick and have a blade exposure of 1.2mm. The blades have a safety guard for added protection and are supplied in an injector dispenser.