Fotodiox Pro Replacement Lens Hood for Original Rollei Camera with 75mm F3.8 Take Lens, Twin Lens Rollei (TLR) Bay-I, Bay 1, B1,Original Rolleiflex Camera with Carl Zeiss Jena Tessar f/3.8 Lens Precision design, made of high impact plastic with metal mount Premium Grade for collector 24 Month Manufacture Warranty