Casters weight capacity is 3500 lbs. Tough industrial powder coating finish. Heavy 16 gauge steel construction. Recessed and concealed locking area protects padlock for ultimate security against drills and bolt cutter. Fully welded seams provide maximum strength. Recessed side handles for easy transportation. Reinforced overlapping lid provides protection from weather and forced entry. Heavy duty industrial lid stays prevents accidental closure. Tread plate design for rugged durability. 50954 available in black only, all others are blueCountry of Origin: CAManufacturer Lifetime Warranty - subject to terms and conditions of manufactuer.