PVD coated stainless steel O-Rings for dog show collars. These match our martingale chains and are from the same manufacturer. Strong and durable. PVD coated stainless steel produces a strong, durable, vibrant, smooth finish that won't chip, rust, crack or peel. The PVD coating combines beauty and durability, significantly enhancing the hardness of stainless steel to make these dependable and extremely strong
11mm Inner diameter, 14.5mm outer diameter
O-Ring is 2mm thick