Tried and true manila library book pockets. Really sturdy manila stock. self-adhesive; 3-1/2in x 5 1/8in
Top Notch Teacher Products, Inc. - TOP4007
Quantity Available for Web Orders: 87 (Call 314-843-2227 to see if this item is available in the store in St. Louis.)
Package Dimensions: Length 5.50" Width 6.00" Height 3.50"