6-piece trigger clamp set includes 4-inch clamps (x2) and 6-inch clamps (x4) 4-inch clamp delivers 22 pounds of clamping force; 6-inch clamp delivers 100 pounds of clamping force Made of durable nylon with hardened-steel bars to resist bending Non-marring pads provide a firm grip and protect surfaces from damage; one-handed trigger for instant clamp release Ideal for clamping smaller pieces and for working in confined spaces; backed by an Amazon Basics 1-year limited warranty