These hanging file folders are made of thick, sturdy polypropylene plastic, making them far more durable than standard paper folders. They feature expanded bottoms for ample storage, reinforced plastic inserts on the base panels to add extra support. The smooth, heavy-duty telescoping hooks slide easily in desk drawers, filing cabinets, file boxes, can safely hold heavy document loads without warping over time. This set includes 12 heavy-duty hanging folders, each paired with a plastic base support, plus 15 adjustable blank label tabs to help you sort and organize your paperwork neatly, eliminating messy overflowing files and keeping your documents conveniently arranged. Available colors: Blue, Grey, Multicolor, Pink, Purple, Red