20Pc Spring Clamps Set Heavy Duty Nylon Clips 3 Sizes Non-Slip Grip TPR HandleHeavy duty nylon construction made of reinforced glass fiber. Comfortable grip, double TPR handle, ergonomic design. 20 piece nylon spring clamp set with 3. 5 inch clamps (x10), 4. 3 inch clamps (x6), and 6. 3 inch clamps (x4) The tempered steel coil spring provides a clamping force. By generating a large amount of clamping force, the object can be clamped effectively. The wide rotary jaw can be adjusted automatically to adapt to the uneven surface,