Product Description The Pony 1" Adjust-A-Clamp allows you to control exactly how much pressure you apply to your projects. With the turn of a screwdriver, you can change the pressure between one and 50 pounds of clamping force for precise control in light-duty applications. Lightweight plastic jaws deliver comfortable yet durable use, and the soft, pivoting jaw pads easily hold irregular-shaped objects and protect workpieces. From the Manufacturer Adjust the clamping pressure with a screwdriver to insure proper holding power.