Handcrafted features include: BPA-free 15mm silicone beads 16mm Acrylic Beads Lead, phthalate and cadmium free. Stainless steel swivel lock and "O" ring on collars Collars made with vinyl-coated aircraft wire (265 lbs pull strength) **This is a made to order item, and is not eligible for returns or exchanges! Can take 1-2 weeks to ship!* Do not measure your old collar for fit as beaded collars are not flat fabric collars and should be worn looser as they are Necklaces (Accessories) for our furry friends, but they should not dangle or hang low like human necklaces X Small Necklace sizes 10" - 11" Breeds: Most Cats, Jack Russel, Terrier, Chihuahua, etc. Small Necklace sizes 12 - 14" Breeds: Some Cats, Pomeranian, Beagles, Pug, Maltese etc. Medium Necklace sizes 15"- 18" Breeds: Cocker spaniel, Border collie, Boston Terrier, etc. Large Necklace sizes 19" - 22" Breeds: Labrador, Golden Retriever, Great Dane, Standard Poodle, etc. XL -Large Necklace sizes 24" - larger Breeds: Pit Bull, Mastiff, Wolf Hound, etc.