CHANSEN PONY spring clamps are ones of the most durable clamps available allowing exact control of the applied pressure, providing between 1 and 50 pounds of clamping force with the turn of a screwdriver. Ideal for gluing models, crafts and various other projects. Light-weight, plastic jaws deliver comfortable yet durable use. Soft, pivoting jaw pads easily hold irregular-shaped objects and protect workpieces. Available in two models 3251 with Max. opening: 1", Throat Depth: 1-1/4" and 3252 with Max. opening: 2", Throat Depth: 2-1/8". Sold in packs of 12 clamps each.