2x2 Coin Snap Holder Dime (17.9mm) Box of 25 2x2 Coin Snap Holder for premium display or long- term storage of coins Made of inert polystyrene will not harm coins - Insert with Black foam on one side and White Paper on the other 100% Archival Plastic. No PVC! - 2- Piece Snap Together Design - Stackable Overall: 2 x 2 x .25