(4) These heavy duty, fixed wall bulk containers are strong and dependable, offering cost savings and many adaptable uses. They are engineered of structural foam injection-molded HDPE. All materials are FDA approved. They last years without warping, splintering, eroding or rusting. These containers have been used in a multitude of applications including: first-aid kit, spill emergency response, aqua culture, resin storage and processing, parts handling, ice, food processing, and seafood handling to name a few. Our fixed wall containers are an excellent choice for requirements where sanitation and cleaning ability are a priority.