Blank filler means that the stack, or band, has blank bills inside. Blank filler stacks, or bands, are not meant to be opened, fanned, or taken apart, but can be. When the stack, or band, is kept intact it looks like a real stack, or band, from all angles.You can take a look at all of our blank filler options, as well as, view the pictures in order to better understand what the bills inside the stack, or band, look like: Click hereVisit our Prop Money Guide for an explanation of all the prop money options that we offer: Prop Money Guide