Used by truck drivers for checking their tires, the sound tells them if their tires have low air pressure. The "Tire Thumper" is made from the wonderful smelling cedar wood, with a shellac finish. The "Tire Thumper" can also be used for other things that might need "thumping". * Leather wrist thong * 8 strip grip handle * Made from Cedar, with a shellac finish * 20 ounces * 19" long; 2" diameter * Has lead core.