Materials: copper, rhinestones, thick silver plated Size: S: 20+5cm; M: 25+5cm; L : 30+5cm; adjustable and easy to fix with extension. Can help you find the right size easily. It also fits most small cats and dogs. Easy to put on and take off, removable safety buckle, three layers of mixed color rhinestones. This pet collar with sparkling rhinestones and a paw pendant is perfect for weekend party wear or a perfect gift for weddings and holidays, to keep your pet looking shiny and beautiful.