For Thicker Jersey & Memorabilia Cards 3 x 4 "SUPER THICK" Baseball Card Toploaders (Pack of 25 - 75 pt Thickness) This 25-pack of toploader sheets fits and protects cards up to three by four inches (W x H) in size. Made of rigid, high-impact PVC material, the sheets keep your cards clean and safe, and holds cards up to 75pt in thickness. Its super-clear finish offers excellent visibility to the cards within, as well. About Ultra•PRO Ultra•PRO is an industry leading manufacturer of investment protection products for the sports and gaming markets for more than 50 years. The company maintains a 150,000-square-foot factory in Los Angeles, and holds numerous U.S. patents across a product lineup that includes pages, albums, portfolios, and platinum soft sleeves.