Set of four useful sizes: 7.5, 10, 15 and 20cm. Durable and strong clamps with swivel jaw pads. Reinforced nylon construction with anti-slip handles. 6pc 7.5cm (3″) clamp – max. jaw opening 30mm. 4pc 10cm (4″) clamp – max. jaw opening 38mm. 2pc 15cm (6″) clamp – max jaw opening 65mm. 2pc 20cm (8″) clamp – max jaw opening 85mm.