HEAVY-DUTY – The spring clamp set is made with heavy-duty material to ensure it is lightweight yet robust. ADJUSTABLE – The angle can be adjusted to suit whatever task you need to complete. The clamping tips on our spring clamps have soft, durable pads to protect your work surface. This set of 12 includes three sizes: 4 x 8.5cm (jaw opening size: 3.5cm), 4 x 11.5cm (jaw opening size: 4.5cm), and 4 x 16.5cm (jaw opening size: 6cm). HIGH-QUALITY – Made with strong fibreglass and reinforced nylon construction for a durable product. SECURE GRIP – The grip is secure and lasting to ensure your health and safety while you work, making them a great choice of clamps for woodwork, and ideal to use as photography clamps. MULTI-PURPOSE – The heavy duty clamps can be used for any number of tasks including in a photography studio, workshops, woodworking, carpentry, DIY, home, garden, and art projects.