Pony, 1", Spring Clamp, For Gluing Models, Crafts & Other Projects That Require One Handed Clamping, Instant Opening & Closing Feature Allows Quick Application, Soft, Pivoting Jaw Pads Keep Work Pieces Protected & Allow The Clamps To Hold Oddly Shaped Objects More Easily, Jaws & Handles Are Made With Glass Filled Nylon, Heavy Duty Tempered Steel Spring Allows Pressure Adjustments From 1 To 50 LB, Handle Contours Enable Comfortable Use, Non-Slip Jaws Become Parallel At Maximum Opening Capacities, Point-Of-Pressure Always Remains Near Jaw Tips Throughout The Entire Range Of Openings, To Hold Where Needed, 1" Maximum Open Capacity Between Jaws, 4" Overall Jaw Length, 1-1/4" Nominal Reach Onto Work.