Dogs Kingdom Clear Blue Rhinestones Diamante Soft Suede Leather Dog Puppy Cat Collars 3 Sizes Brand New PU Leather, with good quality Metal Alloy hardware XS: 11.8" x 0.59"(30*1.5 cm),Overall length 12", will fit 8"-10"(20-26cm) neck S: 14.56" x 0.59"(37*1.5cm),Overall length 14.5", will fit 10"-13"(27-33cm) neck M: 16.53" x 0.78"(42*2.0 cm),Overall length 16.5", will fit 12"-15"(29-38cm) neck Durable and strong ?,5 holes are available adjustable