1000 + 100 (1,100) Premium BCW 2 X 2 Nickel Size Coin Holders 1100 New BCW Premium Brand Cardboard Fold & Staple Coin Holders. Made of Cardboard and Crystal Clear Polypropylene film. Coin Safe! Polypropylene will not react with any metal. No PVC-No Acid-Coin Safe Made in the USA 2X2 inch BCW Brand Cardboard Coin Holders