Kleer-Fax Write-On Tab Ring Book Indexes, 5 Tab, Bulk Packed, Mylar Reinforced, 90# Index Assorted Colors, 36 Sets per Box, 88516 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