Kleer-Fax Write-On Tab Ring Book Indexes, 5 Tab, Bulk Packed, Manila Reinforced, 90# Ivory Index, 50 Sets per Box (88513) 8-1/2 x 11 inch indexes with 1/2 inch tab 90# FSC Certified recycled stock contains 30% post consumer waste 3 hole punched; Mylar reinforced Bulk packed Made in the USA