Brass Rings Brackets & Accessories

ID: 21.26 to OD: 24.4 to Width: 11.2 to Wall: 1.57

ID: 17.8 to OD: 20.9 to Width: 11.2 to Wall: 1.55

ID: 12 to OD: 15 to Width: 12.7 to Wall: 1.5

M10 Thread