Better than cardboard! Ding Defense sheets are made from strong padded plastic, the perfect material for mailing and shipping cards fully protected. | Transparent. Semi transparent finish allows you to see the cards inside the shipper protectors so you ship the correct cards and do have to unpack to check. | Works great with both top loaders, raw and penny sleeve cards. Protectors are thin enough to fit inside a standard envelope and thick/padded enough for pro protection. | Dings are no match! Rigid sheets are size 3.5 x 4.5 inches to provide cards with 1/4 inch full perimeter protection. 100% protection. | Value pack of 110 pieces. These premium card shield protector supplies are every shipper's dream to save time and ship without concern.