Nobel canvas plier is used for stretching canvas tightly while attaching it firmly to a stretcher-frame. Plier turn what can be a job for two people into an easy one person task. The spring loaded handle is shaped for easy and comfortable use. The 4 3/4" metal jaws of the FC 333-4 have a rubber strip that provides a firm and gentle, non-slip hold on canvas and other fabrics. The spring loaded handle is shaped and rubberized for easy and comfortable use.