Coin Storage Tubes, Round Clear Plastic w/ Screw on Tops for Small Size Dollars (S.b.a./sac./presidential) (1 Display Box of 100 Tubes) 1 Box of 100 New Small Dollar Coin Tubes The round tubes are made of crystal clear polystyrene - an inert plastic, safe when in contact with coins Dimensions Designed to accomodate coins 26.49mm in diamater Depth: 52.2mm