Herm Sprenger Easy On Prong Size:Large 3.25mm The Persistent Bark indicator lets

The Persistent Bark indicator lets dog owners know of excessive barking when the collar is turned off

Includes a loop handle and D-ring to attach a leash

Straps are nylon with plastic snaps

using PetKORE’s proprietary natural rubber formula and molding technology

Boost & Level Lock

Herm Sprenger Easy On Prong Size:Large 3.25mm The Persistent Bark indicator letsThis chrome plated steel collar has a special martingale that when a leash is connected to the two O rings the collar is "on" the dog. When the leash is not connected, the collar has to come off as it will hang much looser than a regular prong. This feature is meant to help easily slip the prong over the dogs head, making is super easy for those who cannot use, or do not like the other quick release collars! Available in small 2. 25mm and large 3. 2mm