STEP UP ADAPTER 37 MM-46 MM SCHRITTRING 37 BIS 46 MM 37-46 STUFENRING
37MM - 46MM Step Up Adapter Ring. Allows 46mm filters and accessories to be used on 37mm filter threaded lenses. 37mm has a thread pitch of 0.75mm. 46mm has a thread pitch of 0.75mm.