Slip Guards are designed to fit in BCW Card Bins, Card Catalogs, and card boxes that store cards in a vertical orientation. Slip Guards add grip to the bottom of the row of the bin or box to prevent cards from sliding and falling. Slip Guard Strips are made from a black foam. These are sold in a roll that is 3 inches wide (77 mm) and 96 inch long (244 cm).To place in a card box, line up the unrolled material next to the card box or bin and cut the material to the length of the row in the box or bin. One side of the foam has an adhesive tape. Remove the backing and stick that layer to the bottom of the row of your Card Bin, Card Catalog, or card box.