29mm ID x 39mm OD x 5mm CS Fluoro Rubber O-Ring 5 Pcs – Gavantools
Uxcell 39mm to 50mm Silicone Rubber Tapered Plug with Ring Solid White - Walmart.com
Valve Seat Fire Ring for Precision 39mm Wastegate - AGP Turbo
Heliopan 30.5-39mm Step-Up Ring (#294) 700294 B&H Photo Video
Solo O-ring 39 x 3 - 10686SL | 10686 | 39 mm | 3 mm in Overige / Nieuw - Techniekwebshop.nl
Fotodiox Step Up Filter Adapter Ring for Rolleiflex Bayonet, Anodized – Fotodiox, Inc. USA
Ring stainless steel diameter 39mm - DIVEAVENUE
Amazon.com : 39-58mm Step Up Ring (39mm Lens to 58mm Filter) : Electronics
Stainless Steel Replacement Ring | Stainless Steel Case Parts | Stainless Steel Bezel - Repair Tools & Kits - Aliexpress
4pcs 39mm Inner Size Round Ring 1.5 Inch Closed Ring Metal O - Etsy
Zoro Select O-Ring, Buna N, 39mm OD, PK25 1RJK4 | Zoro
Amazon.com : (2 Pcs) 39-43MM Step-Up Ring Adapter, 39mm to 43mm Step Up Filter Ring, 39mm Male 43mm Female Stepping Up Ring for DSLR Camera Lens and ND UV CPL Infrared Filters :