HEAVY DUTY STEEL ANGLE UPRIGHTS AND MACHINE-ROLLED TRAY EDGES OFFER SUPERIOR STRENGTH AND RIGIDITY. 500LB CAPACITY CART HAS 12 GAUGE STEEL LEGS WITH 3-1/2"" DEEP 20-GAUGE TRAYS. REVERSIBLE TOP TRAY OFFERS A FLAT SHELF ALTERNATIVE TO EASE LOAD OR UNLOAD OF BULKY ITEMS. STEERS EASILY WITH A FORMED STEEL TUBULAR HANDLE AND 5"" POLYPROPYLENE CASTERS (2 SWIVEL 2 RIGID). DURABLE POWDER COAT FINISH. EASY ASSEMBLY.