Our HRPR LED dog collar and leash set features an easy-to-use buckle with safety lock feature to make sure your best friend is safe and secure. Both the collar and leash are available in four different colors and made of tough flexible nylon and coated with a thin easy to clean rubber coating. Collar and leash each have one large solid metal D-ring secured with 4 metal rivets making it much stronger than the typical stitching. Leash has a large durable metal clasp. Collar is fully adjustable, even over the lighted sections for a perfect fit. One size fits most dogs with a range of 14 to 22 ½ inches. Both the collar and leash have bright multicolor LED lights with three lighting modes: slow flash, rapid flash and constant on. Both collar and leash are fully waterproof (charging port cover must be secure). Fully rechargeable collar and leash provide long lasting battery life. A single charge can provide up to eight hours of run-time. Offers convenience over constantly replacing standard batteries. Our highly visible LED collar and leash set provides safety for you and your best friend during walks at night, foggy conditions or inclement weather.