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:Black16" x 11" x 8"4 binsReinforced rib design adds strength and prevents spreading of side wallsLarge front label slot allows larger bar code scanning and content identificationAnti-slide stop prevents stacked bins from shifting forwardOptional dividers increase storage optionsOptional windows maximize storage capacity, prevent spillage and protect parts from dust and dirtEasy cleaned with soap and water and impervious to most chemicals