Clear plastic file boxes are typically made from plastics such as polypropylene. Some listings describe the material as BPA-free or phthalate-free; check the product details to confirm any specific safety or material claims.
Many clear file boxes are sized for letter documents (8.5" x 11") and several models are designed to accept hanging file folders or include built-in rails or lips for hanging files.
Many are designed for portability with molded, cut-out, or comfort-grip handles. Several models are stackable, featuring indexed covers or lid and body grooves that help keep stacked boxes secure.
Most use clear or see-through plastic so you can identify contents at a glance; listings often use terms like clear or clear hue to describe the level of transparency.
Most of the described file boxes list a single main compartment.
Common interior features include in-lid compartments for small items, built-in lips or rails for hanging file folders, and small spaces or slots sized for pens and other office supplies.