3/4" or 5/8" Upgrade Collar to be Fi Compatible Add-On

We get asked a lot about making skinnier Fi compatible collars & we can!!We can make Fi compatible collars for any fi device: Original 1, 2 or Series 3/3+ - just select your device at checkout :)  *Fi device sold separately*This collar upgrade 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   Upgrade any fabric collar or Endurance Collar to be Fi Compatible.This listing cannot be purchased individually, it must be purchased with a collar. Note: the sizing change with adding this optionThe Fi changes how far the collar can adjust, so keep an eye on sizing. The sizing you select on this listing is the size we will make your collar. The original fi device connectors are 1" wide, so for anything other than 1" wide straps on an original fi collar we'll use biothane to connect it together (i.e. for the 3/4" & 5/8" widths) The new Fi 3/3+ has 1" or 3/4" connectors,