For those who need a heavy duty, corrosive resistant hand wringer the BL-44 may be just the thing for you. The aluminum frame, is resistant to corrosion even in salt water & chemical applications. The BL-44 has bronze bearings and non-marring 12 1/2″ rubber rollers. It features automatic, tamper resistant tension adjustment. This model attaches to a flat, table-like surface, such as a workbench.