Model : Deployment Buckle / Clasp Material : Stainless Steel (Top Quality 316L) Finish : Matte PVD Black Size : 20mm (Strap Buckle size) Thickness : Approx. 4.1mm (for strap thickness) Overall Size : 16mm x 23mm x 10.7mm thick Weight : 16g Remark : Design to fit 20mm Buckle End leather strap in thickness approx. 4.0mm