If you want your pets safe at night, then you need to get a LED Collar for them. Material: Nylon Season: All Seasons Pattern: Solid Feature: Reflective Feature: Quick Release Feature: Lights Type: Dogs Size: XS/S/M/L/XL Please choose the size depend on the neck Feature: Anti-Lost/Avoid Car Accident/Three Flash Mode Function: LED Dog Collar at Night/ Collar for Dogs Puppies puppy The time of charging: 30 minutes Using: Available 2-3 hours at a time Type 1: Collar For Small dogs/Collar for Medium Dogs/Collar For Large dogs Type 2: Collar for Cats/Collar for Kitten Type 3: Dog Collar Lead Dog supplies Pet products Type 4: Pet products for dogs for cats