Since 1971, HJC has specialized in manufacturing motorcycle helmets exclusively. The combination of this extensive specialized manufacturing experience, innovative ideas, and reasonable pricing resulted in HJC's success in worldwide markets. It is HJC's continual goal to provide high quality, comfortable, and reasonably priced helmets to motorcyclists around the world. HJC HJ-20 replacement Pinlock® ready RST mirrored shield with tear-off posts for the HJC RPS-10 and RPHA-10 helmets. Features RapidFire™ II Shield Replacement System: Simple and secure shield ratchet system provides ultra-quick, tool-less removal and installation for efficient operation. Optically Superior Pinlock® Prepared 2D Flat Racing Shield: Innovative center one-touch open / close locking system is designed for an extremely secure seal. HJC RST mirrored shields improve eye protection with an increased degree of surface reflection.