Series 3/3+ Fi Collar UPGRADE / ADD ON ONLY colorado If a specific measurement isn't

If a specific measurement isn't left at checkout the standard 26" will be sent

We use solid brass hardware which is resistant to rust

A strap keeper add on is not available for 5/8" widths

Two carabiner add on for summit leash only

Please see size chart in second image for size-to-weight recommendations

Series 3/3+ Fi Collar UPGRADE / ADD ON ONLY colorado If a specific measurement isn'tThis is NOT a collar, you must add a collar to your cart and then add this to make your collar Fi Compatible. You must select in line or layered from the drop down. If you have a strong puller, we recommend the layer option. If you're purchasing more than one collar, please leave in the notes which collar gets the Fi Add On(s). Any 1. 5" Quick Release must be layered. For full performance functionality of the new Series 3+ Fi Devices, we recommend in