The Alcott Adventure Martingale Collar is a gentle and secure solution for your escape artists, providing a comfortable alternative to more traditional choke/pinch collars. This collar automatically tightens as your dog pulls on the leash, preventing your pet from slipping out of the collar during your walks. Black neoprene comfort padding keeps your pet comfortable, while reflective stitching keeps them visible in darker environments. Safe and simple to use, just connect your leash to the metal d-ring and get ready for adventure! Choose from three adjustable sizes with five vibrant nylon colors.