It come with 1 Led dispenser+1 roll of bags+1 puller+3 batteries+1 carabiner. each dog waste bag holder dispenser is designed with led lights and equipped with 3 LR44 button cells, so convenient for you to pick up dog poop in the dark and no need to worry about stepping in dog poop. the waste bag holder is designed with metal lock, more durable than regular lock, not easy to deform, easy to open and close, convenient to attach to backpacks or handbags, not easy to fall off and lose.