20mm Calf Leather Watch Band 1. Material: calfskin 2. Full of elasticity, strong abrasion resistance 3. Strong breathable and waterproof performance, comfortable to wear 4. Steel buckle, not easy to fade, long service life 5. The length of the strap is easy to adjust to fit your wrist 6. Easy to assemble, will not cause damage to the watch 7. Note: The product only has a strap, not the main body Specification: 1. 12mm: width 12x10mm, length 63+112mm, thickness 4.0-2.5mm, wearing range 11.8-15.8cm 2. 14mm: width 14x12mm, length 65+115mm, thickness 4.0-2.5mm, wearing range 12-16cm 3. 16mm: width 16x14mm, length 75+115mm, thickness 4.5-2.5mm, wearing range 12.8-16.5cm 4. 18mm: width 18x16mm, length 75+125mm, thickness 5.0-2.8mm, wearing range 13.3-17.3cm 5. 20mm: width 20x18mm, length 75+125mm, thickness 5.0-2.8mm, wearing range 13.3-17.3cm 6. 22mm: width 22x20mm, length 75+115mm, thickness 5.0-2.8mm, wearing range 13.3-17.3cm 7. 24mm: width 24x22mm, length 75+115mm, thickness 5.0-2.8mm, wearing range 13.3-17.3cm