Material: Zinc Alloy

Size:

Inner Diameter: 21mm ;  Approx. 0.83 inch

Inner Diameter: 26mm ; Approx. 1 inch

Inner Diameter: 32mm ;  Approx. 1.26 inch

Inner Diameter: 38mm ;  Approx. 1.5 inch

Inner Diameter: 51mm ;  Approx. 2 inch