The leather sandbag is a durable bag for metal forming.  it hollows the blows of the mallet allowing the metal to stretch to the shape required. Choose from two sizes: the six-inch 150 millimeter or the 8-inch 200 millimeter triple stitch bags. These sandbags are easy to set up and require little space.  See the leather sandbags and more great tools at Stuller.com/tools.