Doggy doms safe-d-lite collar-leash

New LEDs lights can be turned on and off for daytime or nighttime. Use3 modes fast-blink and slow blink and constantly on users replaceable batteries included tough nylon and steel clasp for security and bright led bulb &,fiber optics led bulb &,fiber optics led bulb last long time &don't get very hot.so that do not cause discomfort leash 48in collar large 15-21in keep you and your furry friend safe