Top Quality 304 Stainless Steel, Never Rusty.

Ring Size:  5 size Clamp Ring for choose

Size 1: Small 1.48 inch / 38mm

Size 2: Medium 1.61 inch / 41mm

Size 3: Large 1.99 inch / 51mm

Size 4: Extra Large 2.24 inch / 57mm

Size 5: Super Large 2.44 inch / 62mm