Features: Triangle buckle oval ring diameter:16.5mm/0.65',22mm/0.87',28mm/1.1',36mm/1.42' can be selected, round ring diameter:6mm/0.24',8mm/0.31',10mm/0.39',13mm/0.51'can be selected. Can be used in various applications,sports equipment,pet products and so on. Excellent for quick connect/disconnect belt & bag straps and more. Great for the use of collars,belts,backpacks, luggage,handbag accessories. Products should be tested in their specific application. Specifications: Material:Stainless Steel Size:Approx.15mm/0.59',20mm/0.79',25mm/0.98',32mm/1.26' (optional) Quantity:10pcs Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 10pcs D Ring Buckle