iStrap Alligator Grain Calf Leather Compatible/Replacement for Apple Watch Band Strap iWatch Series 4 3 2 1 Edition Sport 38mm 42mm 40mm 44mm CALF SKIN LEATHER: Select from imported Italian calf skin leather. Choose from 2-4 years old calves pores smaller then Daniel, tension strong, but price is high, because the leather is soft and smooth, lower production. So the leather are used for making small leather product (purses, wallets, straps, etc.), of course the leather become the top grade style. COMFORTABLE AND BEAUTIFUL: It might be a little bit stiff when first taken out of the package. Bend it forth and back for some time or wear it for a few day, it will become quite soft and comfortable to wear. The leather is very nice, classy and stylish. It looks great, the stitching and markings are all very nicely done. HIGH QUALITY: Be made well with a decent looking embossed skin pattern. The buckle is excellent quality and smoothly polished. The watch band is doing great! Some strap broke after a day or two, or after a week. After month later its still strong as ever. WIDTH AND LENGTH: 22/20mm, fit watches with 22mm flat lug, comes with a 20mm steel tang buckle,Length is 125/75mm,when fixed together, the total length range is 135mm to 180mm (5 5/16'' to 7''), plus the watch case diameter, and it's the wrist range the strap will fit. SUITABLE FOR WATCH:Compatible with Apple watch, Apple Watch Sport and Apple Watch Edition, 38mm 40mm model only