Pattern and cabinet maker steel pinch dogs. Square corners over the legs make for easy driving. Makes it a breeze to pull any two boards together. You will find endless uses for these reusable clamps……for instance, if you are installing wainscoting in a room and need to pull together the boards. Use one pinch dog at the top and one at the bottom of the two pieces exactly where you will later install moulding that will cover the small holes produced while using the pinch dogs.