Tried and true manila library book pockets. Really sturdy manila stock. self-adhesive; 3-1/2in x 5 1/8in
Top Notch Teacher Products - TOP4032
Quantity Available for Web Orders: 5 (Call 314-843-2227 to see if this item is available in the store in St. Louis.)
Package Dimensions: Length 5.00" Width 3.50" Height 0.50"
Hubbard Company - WAR91018