5 1/2" Gray Square Leather Bench Block Pad For Chasing Stamping Forming Metal This 5 1/2 square sandbag can be used with or without a bench block Great for stamping, chasing, and forming metal. The leather is slip resistant and helps deaden the blow and sound when striking a piece of material. This square stitched leather pouch is filled with sand to absorb the energy, noise, and vibration caused by hammering on a bench block or anvil to flatten wire or chase metal. It is a must for metal jewelry makers, wire workers, and metal clay artist who shape metal and wire.