Petsafe, Spray Bark Collar, Designed To Help Stop Nuisance Barking & Whining With A Burst Of Spray, Sound & Vibration Of Your Dog's Bark Triggers A Sensor On The Collar, Emitting A Burst Of Spray To Help Stop The Unwanted Behavior, Includes Both A Citronella & An Unscented Spray Refill Cartridge, Recyclable Refill Cartridges Are Convenient To Replace With No Mess, Collar Is Rechargeable, No Batteries Required, Designed To Fit Dogs 8 LB & Up With Necks Up To 27" In Circumference, Refill Cartridges TV #261-018 & TV #261-019.
