2cm wide leather collar for small dogs. Printed with calf hair. ●Size: Leather width: 2cm Thickness: approx. 3mm Neck circumference: 25cm **Please measure your dog's neck circumference before ordering (allowing for about one finger's width of space). Holes are: ● 25 ● ● ● (1.2cm spacing) (The actual size will be slightly larger to account for the leather on the inside.) Please confirm. **Measure from the edge of the leather (not from the edge of the buckle hardware). +++++++About Extra+Heavy+++++++ I have many other items for sale, so please take a look. Extra+Heavy is a handmade collar shop that specializes in custom-sized collars, mainly for bulky breeds and dogs with long necks like Italian Greyhounds, including half-choke collars and leashes. We have shops on Rakuten, Yahoo! Shopping, and our main store. *You can find Extra+Heavy by searching for "collar studs" on Rakuten and Yahoo! Shopping Mall.