16 gauge steel frame apron and 14 gauge legs make this table virtually indestructible. The 11 gauge steel tabletop support tabs and corner brackets fuse as one with 4 heavy-duty tamper-free Loctite hex screws. The adjustable height steel legs feature a supreme dual connection. The 12 gauge leg-base is fastened to the table top with 4 heavy-duty screws which gets inserted into the the frame using a strong welded hangar bolt. Legs connect to the frame corner brackets with industrial-grade nylon-insert lock nuts. The legs adjust in 1" increments and are locked firmly in place with 2 K-9 external tooth lock washer and heavy duty tamper-free hex screws. All legs come standard with simple-adjust glides with optional casters. The Phenolic table top provides the ideal surface for lab experiments. 22.25"-37.25"H.