Standard 1" Fi Compatible Dog Collar 40 Size is approximately 3" longåÊx

Size is approximately 3" longåÊx 2" wide x 2" high

The smaller sizes have reduced room to adjust so if your pup is in between sizes

Medium (15" - 19" length)

This is it

and blue design

Standard 1" Fi Compatible Dog Collar 40 Size is approximately 3" longåÊxFi Device Sold Separately This collar does not include the Fi Smart Dog Activity Tracker. You must own a Fi device in order for this collar to work properly. Need a Fi Collar Set? Snag one at www. tryfi. com with discount code CLIVEANDBACON50 and save $50 on your collar kit! Our Fi Compatible collar adds more fun to your pup's active lifestyle! This collar features our signature bright and fun designs and includes genuine Fi end links to attach to