Universal end tab folders, two fasteners, letter, manila, 50/box sturdy reinforced fastener folders are ideal for securing all of your important papers. Bonded fasteners make it easy to keep your files safe as well as organized. 3/4″ expansion. 11 pt. Manila. File folder type: end tab fastener; size: letter; folder material: 11 pt. Manila. this product arrives to most customers in 2-3 business days.