Side Tab File Pockets, Expanding Letter Size Red Rope 5-1/4 Inch with Full Mylar Expansion 25 PER BOX Letter Size File Pocket Expands 5-1/4" for greater storage capacity Full-length side tab provides large labeling area Tear-resistant, Mylar reinforced gussets for strength and durability Constructed of the heaviest manila linings available; Acid Free Made in the USA