Star  Heavy Duty Top Tab File Pockets, Expanding Letter Size Red Rope 3-1/2 Inch with Full Tyvek Expansion 25 PER BOX Letter Size File Pocket Expands 3-1/2" for greater storage capacity Full-length top tab provides large area for labels Full Tyvek-reinforced gusset provides extra strength and durability Constructed of the heaviest manila linings available; Acid Free Made in the USA