Starmark Pro-Training Add-A-Link Collar Extension

The certified professional training and behavior specialists at Starmark Academy developed Starmarks Pro-Training Collar to provide gentle, effective control. The Add-A-Link Extension allows you to adjust the size of the collar to create a better fit for your dog.
Each Add-A-Link extension includes three links
Designed to be used with the large Starmark Pro-Training Collar
Patented humane design
Has the appearance of a flat collar
Helps prevent pulling and lunging behavior