BCW Standard Clear Topload Card Holders, model 1-TLCH-N, come in a 1000-count pack sized for standard cards up to 20 pt. Each holder is made from rigid PVC plastic with extra-clear construction, recessed design, beveled edges, acid-free material, UV protection, and recycled materials. Measuring 3 inches by 4 inches, these are the common BCW top loaders used for storing and protecting trading cards.