Made in the USA from heavy-duty, virgin grade, high density FDA approved polypropylene. Front, back and side grips for easy handling. Built-in rear hanger allows bins to hang from louvered panels or rails. Wide stacking ledge and anti-slide lock keep stacked bins steady and prevent forward shifting. Water, rust, and corrosion proof. Guaranteed not to break or crack under normal load conditions. Details: Green Available in multiple sizes Water, rust, and corrosion proof Reinforced rib design adds strength and prevents spreading of side walls Large front label slot allows larger bar code scanning and content identification Anti-slide stop prevents stacked bins from shifting forward Optional dividers increase storage options Optional windows maximize storage capacity, prevent spillage and protect parts from dust and dirt Easy cleaned with soap and water and impervious to most chemicals High density polypropylene construction