National Public Seating's Adjustable-Height Steel Frame Science Lab Table with Phenolic Top is built to withstand the toughest of environments. The 16-gauge steel frame, 14-gauge steel legs and phenolic top make this table virtually indestructible. Tabletop is designed to withstand harsh chemicals and heat during lab experiments and has a weight capacity of 500 pounds. Legs are adjustable in 1" increments and connect to the frame's corner brackets with industrial-grade nylon-insert lock nuts. Legs feature simple-adjust glides. Add on casters for even more versatility. Available in several different sizes.