Please measure your dog for a proper fit prior to ordering. The Large and Medium sized collars come with room for Hook And Loop patches. Our collars are made to be thick and sturdy to last long. Easily and highly visible - Bold and large font that is easy to read from a distance to alert your surroundings. Create a safer environment for your pup and everyone around while on walks, at the park, or training. Communicate to the public – Bright wording is designed with safety in mind. It provides yourself and others (such as dog walkers, adults, and children) from a distance with the presence of your service dog. High end features – Strong chrome coated D-Ring for your leash and pet tags. High quality nylon and embroidery designed to handle any breed. 4 available sizes - ((Large) 17-23in Length x 1.5in Width), ((Medium) 16-20in Length x 1.5in Width), ((Small) 10-16in Length x 1.25in Width), ((X-Small) 10-12in Length x 1in Width) The Large and Medium sized collars come with room for Hook And Loop patches. Easily and highly visible - Bold and large font that is easy to read from a distance to alert your surroundings. Create a safer environment for your pup and everyone around while on walks, at the park, or training. Communicate to the public – Bright wording is designed with safety in mind. It provides yourself and others (such as dog walkers, adults, and children) from a distance with the presence of your service dog. High end features – Strong chrome coated D-Ring for your leash and pet tags. Durable quality – High quality thick nylon and embroidery designed to handle any breed. 889 certification