防静电椅子 Color: anti-static PU leather, Two colors, i.e. blue and black, are available. Dimension: 430*400mm(chair seat); 400*300mm(chair back) Height adjustable between about 530-690mm (supplied with 160mm adjustable pneumatic rod) Surface resistance: 103~106 Ω or 106~109 Ω. System resistance:≤109Ω