These 10mm, sparkle collars are made of a shimmery glossy material. Each collar has a buckle with Czech Crystals and suede backing. With a re-vamped sturdier crystal buckle. Customize this collar with any of our 10mm charms or letters! Sizes (in inches): 8, 10, 12, 14. The Leads are 4ft long x 10mm wide. Matching leads are made of a shimmery glossy material. A perfect completion of the Sparkle Collar set.