External size: 5" x 8" , for best fit the bill or document should be about 1/4" smaller in height and width.

Supersafe MG series of foldover flap type Currency and document Holders are made from Museum Grade 4 mil polyester - ideal for long term storage. 

These holders are open at the left and right ends and can be opened wide at the top for easy insertion, perfect for heavily worn and delicate notes that will not fit into a top loading holder.