The L01Z-70 Heavy-Duty Manual Lab Jack utilizes a dual-pantograph design which offers excellent rigidity. The adjustment mechanism uses a lead screw to close the angle between the opposing pairs of supporting struts. The large 160 x 220 mm mounting platform supports up to 30 kg with a smooth vertical adjustment range of 70 mm supported by stainless steel axles and connecting rods. Both the top and bottom plates offer a generous array of M4-0.7 tapped holes and clearance slots for general mounting requirements.