Holistic collars for dogs, cats, ferrets, skunks xxxxx Collars are carefully hand-made in Fort Lauderdale, Florida, USA using fine gemstones such as Amethyst, Citrine, Coral, Carnelian, Peridot, Natural Quartz, Blue Lace Agate and more, and sterling silver clasps and findings. Collars are manufactured with same excellent standards as Bridge Jewelry, except for cat collars which are elasticized for safety. Concept is based on ancient wisdom of gemstone healing to provide health enhancing benefits for pets up to 60 pounds and people. Sizes range from 5" to 17", with additional sizes available by special order. Digestion (see photos of Peridot & Citrine collars); Asthma & Upper Respiratory issues (See photos of Rutilated Quartz collars); Anxiety & Fear; Inflammations including Arthritis and Skin (See photos of Amethyst collars); Bones & Muscles; Central Nervious System disorders. Our collars are 100% guaranteed against breakage for 6 months. Earth Energy Pet Collars are both beautiful and beneficial. They really madke a difference!!