No-Slip Martingale Dog Collar - Adjustable & Secure Pet Training Collar for Walking, Training, and Everyday Use

Hey, you don't want to lose your collar, do you? The NO! Slip Martingale collar is perfect for dogs that have larger necks than their heads or dog that are houdini. Basically, if a dog pulls the collar tightens, but not too tight. To put the collar on you slip it over you pup's head. Easy!