Food storage boxes are an affordable alternative to the high cost of polycarbonate food storage boxes. Our boxes feature more reinforcing ribs under the rim than other brands. These ribs add more strength to the rim which reduces twisting, bowing, and tears. The four stacking lugs on the sides prevent sticking when nested. Food storage boxes feature re-curved handles molded into the box. This design allows for maximum comfort, efficiency, and safety in the work place. This ergonomic feature also reduces stress on the fingers and hands while lifting heavy loads. Food storage boxes incorporate a textured outer surface which resists marring for a long and attractive service life. Thicker plastic corners reduce the possibility of wearing holes in the bottom, extending the life of the box. The inner surface of box is very smooth with a wide radius for easy cleaning. Both box and lid are made of polypropylene. Optional contoured lids provide for food storage boxes to be stacked on top of one another without leaning or collapsing. Lid sold separately. Made in the USA.