Size (mm) : 21/18 - Material : Calf Color : Black Croco Grain Thickness (mm) : 6mm (Plastic inlay for spring bar) to 4mm Stitching Color : Match Color Stitching Length (mm) : 145 + 70 Style : Hard Core Plastic for spring bar (spring bar not included) Buckle : Include 18mm Stainless Steel IPG Rose Gold Depolyant Buckle/ Clasp