STARMARK - Pro Training Collar Links

Gentle & Effective
Pronged, linked design is gentle but effective in enforcing pack leadership.
Create a Perfect Fit
Linked "watch band" design allows for sizing adjustments. 
How to Add or Remove Links
Bend the collar so that the inside links are touching
Disconnect the links using a firm twisting motion
Add or remove links to adjust the size

Sizes
Available in small and large (includes three links)