This 6-piece trigger clamp set includes two 10.16 cm clamps and four 15.24 cm clamps. The 10.16 cm clamp delivers 9.98 kg of clamping force, while the 15.24 cm clamp delivers 45.36 kg of clamping force. Made from durable nylon with hardened-steel bars to resist bending, these clamps feature non-marring pads for a firm grip and surface protection. The one-handed trigger allows for instant clamp release, making them ideal for clamping smaller pieces and working in confined spaces. Weight: 3.499400983462098 pounds Manufacturer: Amazon