3 X 70g refill cans of citronella for the ABS Anti Barking Collar.

The citronella refills contain a gas mixture that is 100% safe for people, animals and the environment. Most of us are familiar with its pleasant lemony scent. Citronella is an essential oil that is derived from the stem and leaves of lemon grass and has been used in medicine for a thousand years. The propellant gas is the ozone friendly, it is harmless to pets and people.