Capacity varies by style, typically from about 25 sheets up to 200 sheets. Check the product listing for the exact sheet capacity for a specific folder model.
They’re made from a mix of materials, including plastic (durable poly), paperboard/paper, polypropylene, and heavyweight cardstock (300gsm). Material choice affects durability and water resistance.
Expansion depths shown include about 1 inch for some binder envelopes and 1/2 inch for certain zippered binder pockets. Verify the listed expansion depth for the product you’re considering.
Extras can include writable labels, printed reference info (periodic tables, rulers, conversion charts), clear front pockets compatible with study apps, interior business-card slots, and metal prong fastener clasps.
Most are 3-hole punched for standard 3-ring binders. Other options shown include folders with pronged fasteners, spine-mounted binder rings, and non-pronged inserts intended to be stored inside a binder.
Options range from solid and assorted color packs (primary or fashion color assortments, teal, etc.) to printed and decorative designs like geometric patterns with gold-foil accents and Day Dream pastel prints.