Awtang Adjustable PU Leather Bling Diamante Rhinestone Crystal Pet Puppy Cat Dog Collar 4 Colours S M Material: PU leather Color: Pink, black and red are available. It's super cute and very easy to wear on. These are fashion collars and as such should not be used as a restraint when walking or training your pet. Note: Before you order, be sure your dog is suitable for this size (That's very important).