Gross Stabil U 4.5-32 4.5-Inch-32-Inch Sliding F Clamp 4 5" Throat Depth 32" Nominal Opening 1-5/32X11/32" Recessed and notched Steel bar Galvanized spindle and steel bar Polyamide full throat protective and replacable end caps Molded wooden and painted handle fits comfortably in your hand