Ergonomic design provides 100% inside berm accessibility with an unobstructed side-to-side floor space for vehicle tires, foot traffic, and cleaning. The patented Rigid-Lock wall-support design protects personnel against trips and falls when walking along the outside perimeter. Built-in stainless steel wall supports lock the sidewalls in a 12-in (305-mm) high, 90° vertical position. The Rigid-Lock Quick Berm offers immediate, secure deployment and no-worry, spill-readiness.