The Clamp-On Stitching pony has leather covered jaws to gently yet firmly grip your leathercraft project while stitching. It has a lever to easily open and close the jaws to clamp on to your stitching project. The adjustable ball joint allows for complete rotation and angling of the stitching project for ease of use and comfort. It clamps to surfaces up to 2-1/8" thick. Makes stitching a dream.