50 Plastic 3/4" 20mm O Ring for Dee webbing Belts Buckles Bag Black Material: Plastic Color: Black Quantity: 50 Pcs Size: 3/4" 20mm approx Outside: 1.06 " or 27mm;Inside 0.75" or 20mm;Wire thickness 3.5mm You can use:Dee webbing Belts, etc