FOR BIG DOLLARS COIN; MORGAN, PEACE AND IKE.First quality coin holders Made of Durable Mylar Not harmful to coins These cardboard holders have the round windowed tough mylar plastic inserts installed.SIZE; 2x2 Simply insert coin, fold over, and staple.GENERAL INFORMATION; Simply place your coins in mylar 2x2 holders; staple shut.The mylar holders are completely safe for long term storage and not to mention the most inexpensive! Label the holders with a permanent marker.