Our Pinch Dogs are made by a small forge in Remscheid, Germany called Fr. Halbach. Pinch Dogs are simple clamps that are hammered into two adjacent pieces of wood during assembly or glue-up. The tapered legs cause the pieces to be drawn tight together as the clamps are hammered in. Pinch dogs are endlessly reusable. We fully guarantee our Pinch Dogs against breakage. We will gladly send replacements if one should ever break.