Proline Decorative Concrete Systems BBANGER 7" x 7" Billy Banger Hand Tamper. Proline manufactures the finest Tampers / bumper in the market. This patented tool offers easy dismantling, an extra long grip, a composite handle, a removable locking pin, rounded corners and edges and a self-aligning base. Most important, our Tampers have a shock-absorbing flexible coupling to take the pressure off the shoulders of the installer. Named after Bill Shorey "The Colorman" of Spec-West in Sacramento California, this hand tamper is small & lightweight yet it has Heavy-Duty construction. It can be used both horizontally & vertically. Its small size is perfect for tight areas and stairs.