I believe you are talking about the card board coin holders, comes in various sizes of 1 1/2 x 1 1/2 in, 2 x 2 in and 2 1/2 x 2 1/2 in, the size refer to the opening in the cardboard with plastic cover, the 2 1/2 x 2 1/2 I have found work best with chips, however this size I understand has been discontinued. chip/coin is laid on one side folded over and stapled on three sides, all sizes were available at one time from CT Coins/C.T. Rodgers