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). BUTCHER BLOCK BENCH TOP IS KILN DRIED ELECTRONICALLY GLUED SANDED TO 1-3/4""THICKNESS. FINISHED WITH A PENETRATING MINERAL OIL FOR A DURABLE HIGH QUALITY APPEARANCE. HEIGHT ADJUSTABLE WORK BENCHES OFFER 35-7/8 TO 43-1/2"" HEIGHT ADJUSTMENT TO MAINTAIN A PROPER WORK HEIGHT.