Rockstar XS Collar When Diva-Dog's design staff met, the objective was obvious - The Rockstar Collar Collection has crocodile embossed patent leather studded with silver pyramid studs - worthy of a true Rockstar! Dog collars range from XXS to Large and have matching 4 foot leashes. Size: 3/4 in. x 8-11 in. Exclusive design by Diva-dog NOTE: The lengths listed are the approx. location of the holes on the strap. These collars can be adjusted to smaller lengths simply by adding more holes. You can lengthen them as well, up to 1 additional inch on the large collars. Diva-Dog adjustable dog collars are made of soft and comfortable nylon overlaid with durable polyester ribbon, which is quintuple stitched at stress points for added strength.