C-Line poly pocket folders are typically made from polypropylene. Some listings specify acid-free or heavyweight polypropylene construction for added durability.
They are designed to hold letter-size paperwork (8-1/2 x 11 inches).
Closure and binder features vary by model. Common options include button-and-elastic closures on backpack-style files, three-hole punching for storage in 3-ring binders, and self-adhesive add-on pockets that affix to binders or folder covers.
Add-on filing pockets are clear polypropylene with a self-adhesive backing so they stick to binders and folder covers. The pockets measure 8-3/4 x 5-1/8 inches; common accessory pack configurations include 10 pockets per pack and multi-packs (for example, five packs for a total of 50 pockets).
School-to-home folders are typically two-pocket files with interior pockets labeled 'Home' and 'School' (labels provided in both English and Spanish) and clear cover pockets for inserting custom student sheets.
Common binder compatibility features include three-hole punching for standard 3-ring binders, cut-outs to prevent catching in binder mechanisms, and filing pockets sized to fit into standard binders.
