Aviditi BL603-L LED Lighted Dog Collar, Red with Red LED Lights, Large Made from PU leather with super-bright LED lights that will help you and others see your dog while out on walks at night or in the dark 4 Different light settings: Slow-flashing, quick-flashing, non-flashing, and off (for daytime use) Lightweight, durable, and weather- and water-resistant Color: Red with red LED lights Size: Large; Measures: 1-Inch by 13.8-15.7-Inch (2.5cm by 35-40cm)