Pulley Bench Clamp Fitting, with nylon ball bearing pulley-EIS-PH0296B offers a thoughtfully designed, durable resource for hands-on learning. Includes: (1) Bench clamp pulley Comprising a 50 mm diameter nylon ball bearing pulley, carried on a two part aluminium frame, designed primarily for clamping to the edge of a bench, table etc. With the pulley overhanging the edge and in a vertical plane. Overall length of frame (pulley bar) 110 mm. Maximum clamp opening 25 mm.