Wonderful Wags Adjustable Bark Collar for Dogs Safe and Humane  Uses painless tone followed by shock only if barking continues Effective Training  Automatically progresses through 7 levels of correction Advanced Microprocessor - Distinguishes your dog's bark from other environmental noises Adjustable Collar - Fits dogs from 15 to 100 pounds (5 to 24 inches) **Sale! Sale! Sale!** Discontinuing this Product - Get it now! One Year Warranty