Aviditi BC704-S LED Lighted Dog Collar, Pink with Pink LED Lights Helps 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 for comfort, weatherproof and shock-resistant Color: Pink with pink LED lights Size: Medium; Measures 1-Inch by 17.7-19.7-Inch (2.5cm by 45-50cm)