SERVICE DOG Blue Color Coded S-M L-XL Buckle Dog Collar (Do Not Disturb) PREVENTS Accidents By Warning Others of Your Dog in Advance S-M High quality adjustable collar fits neck 10-17inch x 1inch 2 embroidered words All products feature durable nylon, anti-corrosion triggers and 'D' rings and embroidered wording Color coded with wording to PREVENT accidents or incidents in public, A Safer Place For All Available in buckle and semi-choke collars, leashes, harnesses and coats in various sizes and ranges