These sizes refer to the thickness of the binding or tape to pass through the folder. Please take into account any seams or joins as the thickest part of the binding or tape must be able to pass through.
Start size: This size of the tape or binding before entry into the folder.
Mouth size: The amount of clearance in the mouth of the folder. This should be ascertained by measuring the largest seam or join you wish to bind over.
Adjustable jaws: Can be fitted to the mouth of some folders and move fom left to right to enable you to achieve level folded edges.