Shop top work benches protect against static build up and won't warp or split. Durable shop top is constructed of a high density particleboard core sealed with a catalyzed finish. Super strong MDF core. Sanded smooth surface sealed for moisture resistance. Height adjustable work benches offer 35-7/8 to 43-1/2" height adjustment to maintain a proper work height. Includes 1-3/4" thick square edge Shop Top. Legs are reinforced with cross bracing for extra strength and rigidity. Mobile work bench legs feature removable duplex knock-outs to accept electrical outlets (not included). Finished with scratch resistant gray baked enamel. Mobile benches are easy to move on 5" casters (2 rigid, 2 swivel with brakes). , Lot of 1