The aboistop kit comprises of a nylon webbing adjustable collar with a unit mounted on it a battery and a refill canister containing oil of citronella the aboistop kit is used to control problem barking at each bark the collar releases a spray of natural citronella oil that surprises the dog he will stop the unwanted behaviour and try to locate the source of the strange smell gradually he will learn that when he smells the scent he is forbidden to bark