Rugged design for moving heavy cargo across rough terrains and long distances. Unique patent-pending bottom hinged handle that swings from frame allows for safe pulling by operator. Movable handle locks into upright position in frame for conventional pushing operation. Shelves are 21″ x 33″ 18-gauge stainless steel, casters are 6″ pneumatic, (2) swivel & (2) fixed with 2″ wide ribbed tread. Casters are plate-mounted to reinforced stainless steel cross members. Made in the USA.