The Bessey Clippix XC Spring Clamps are perfect for gluing, clamping and securing objects. They feature soft, anti-slip ergonomic handles that offer quick and easy one handed operation. The self-adjusting protective caps offer secure non-marking clamping. Manufactured from lightweight fibreglass that has been reinforced with nylon for ease of handling.The Bessey XC1 Clippix XV Spring Clamp has the following specification: Opening: 20mm Throat Depth: 20mmWeight: 0.01kg