Hot PINK Biothane Dog Collar - with Rose Gold or Stainless Steel Fittings - 16mm or 25mm wide BioThane is extremely durable, waterproof, stink-proof, and therefore headache-proof for dog owners. This collar is great for adventurous pups who like to get muddy or go swimming. Vegan, and cruelty-free Optional rose gold or stainless steel fittings Measures 16mm or 25mm wide Available in neck sizes: Small - 9-13 inch/22-33cm (holes at 9, 10, 11, 12, 13") Medium- 13-18 inch/33-45cm (holes at 13, 14, 15, 16, 17, 18") Large - 18-22 inch/46-56cm (holes at 18, 19, 20, 21, 22") - 25mm wide The Biothane range of collars and leads are made in-house at Pet Pooch Boutique Genuine Biothane material, colour code guide: GD52X - coral WH521 - white BL520 - black RD522 - red OR522 - orange OD521 - camel WN521 - red wine PU522 - lavender PK523 - hot pink BU521 - sea salt blue GY523 - grey YE521 - yellow GD521 - gold TN525 - khaki PC524 - coral