Thisline of illuminated pet safety products has people and their pets literally glowing. Now available with a matching Dog Leash They are made from a durable nylon material. The width of all small collars is 3/4". Width of Medium and Large Collars and all Leashes is 1". The collars take 2 CR2025 3 V Lithium Cell Batteries (included) and that they also have the dual mode - blinking or "steady-on" lights. Leashes use 2 AA batteries (included).

Small: fits 10-14 inch necks
Medium: fits 13-20 inch necks
Large: fits 16-26 inch necks