For Garmin Forerunner 645/Forerunner 645 Music Stylish Gradient Top Layer Cowhide Leather Anti-scratch Watch Band Replacement Wrist Strap (20mm) - Silver / Blue Made of top-layer cowhide leather, soft and comfortable wear Cowhide leather surface, delicate and stylish Polished stainless steel buckle make it easy to adjust the size An ideal replacement watch strap for your old, broken one Easy to install and remove Specification: Wrist circumference: 5.5-8.1 inches Length: 3.5+4.6 inches Lug Width: 20mm Material: Cowhide Leather+Stainless Steel Compatible with: Garmin Forerunner 645/Forerunner 645 Music Package included: 1 x Watch Strap Strap only, watch not included