Bessey EKT-55 one hand edge clamp. Unique twin spindle design applies pressure simultaneously to top, bottom and edge. Two large non-slip pads for top and bottom of panel for positive grip. Large pressure plate swivels for on demand pressure. Removable protective plastic cap on pressure plate. Impact resistant plastic handle. Clamping capacity 2 1/8″ (thick) x 3″. Clamping force 500 lb.