The Nite Ize NiteHowl Dog LED Safety Necklace in Pink is a universal size collar designed for dogs of any breed. Made from plastic, this adjustable necklace features a reflective material for added visibility during nighttime walks. With a unisex design and a cut-to-size length ranging from 12" to 27", this Nite Ize model provides a safe and secure way to ensure your furry companion is seen in the dark.