Standard Pack = 1 piece(s). These Large-capacity storage bins improve organization and workflow. They're molded from industrial-grade polymers, making them resistant to weak acids and alkalis. They're also water-, rust-, and corrosion-proof. Plus they securely stack atop each other and can sit on shelving, carts, and dollies. And their reinforced side ribs and extra-Wide stacking ledges provide stability and prevent spills and spreading when stacked. Other features include Large label areas for easy identification.