*** Please note: this collar requires a SERIES 2 Fi device, sold separately at tryfi.com. This listing is for the collar band only, and it is only functional with the Fi unit attached. These are pre-made, so size alterations cannot be made.***
L / martingale / merlot + olive : 20.5" - 25.5"
S / buckle / forest + lilac : 14.5" - 16"
S / martingale / peach + lilac : 15" x 16.5
XS / buckle martingale / merlot + lilac : 13.5 / 14
*** Measurements above include Fi unit. All sizes are 1" wide.***
