CAUTION; I don't nromally use staples on 2 x 2 Mylar flips, but with the multiple coins they must be used to keep coins within the flip separate and apart from one another.. I highly recommend using a pointy wooden toothpick to poke through mylar to avoid possibility of a staple making a scratch on a coin. If you get one of my taped flips one seam can be slit open with a thumbnail and coin slid out permitting reuse of flip.