There are no instructions so it took me a while to figure out how to cut it. It can be a little tricky to open until you remember which way to pull the release lever.
Pros
CUSTOMIZED FIT: This belt comes in one size and can be tailored to your individual needs. The full size animal harness fits waists up to 46 inches. Dimensions are printed on the back to indicate where to cut. We recommend cutting two inches above your waist measurement, but you can trim it to any size you want!