18mm, 20mm Top Quality Stainless Steel 316L Spring Bar type 3mm-Tongue Buckle, BrushedItem no. : ACC-BU20-056B Buckle size : Options of 18mm or 20mm (Strap Buckle size) Buckle type : Spring Bar type Thickness : Approx. 4.0mm Material : 316L Stainless Steel, Solid Color / Finish : Brushed Net Weight : 5g