Made with 100% Genuine Cow distressed leather Buckle and D-Ring in matte finish Dimension of star concho is 1.25" x 1.1". 4 hearts per collar Width of the collar is 1" or 25 mm Length measurement S : From Start of leather to first hole is 12", to last hole is 15", to tip is 18" M: From Start of leather to first hole is 15", to last hole is 18", to tip is 21" L: From Start of leather to first hole is 18", to last hole is 21", to tip is 24" Best is to compare with a collar your currently have to find the best size to fit. Neck size length is compare to the length to middle hole