The valid length of replacement 3/4" collar strap is 6.7"-26.5" for your dogs.you can free adjustable.
Easy to get a perfect fit with 35 tightly spaced sizing holes Measure and cut to desired length.
It is a waterproof dog replacement straps.No stink, No tears, No fading and No mold!
The Dog Replacement Straps can working with iPets, Petrainer, Aetertek, Pettech, Garmin, Delta, Dogtra, Tri Tronics, Petsafe, TrainPro, Educator, Esky.
Keep your pets safe and save yourself time.