The Irwin Quick-Grip Spring Clamps are easy to use, making them an excellent choice for smaller projects or crafts. You can also use these metal spring clamps as temporary hold downs or to help keep pieces in position while you attach additional clamps. The Irwin spring clamps have soft jaws that protect clamped surfaces from damage while they apply firm pressure. They open with just a squeeze so you can quickly place or remove them with one hand, making them a good option for clamping glued parts when time is a factor. They also have vinyl-coated handles that provide a sure grip. These metal spring clamps are 3 in. long with a 1 in. jaw opening and a 1 in. throat depth.