Material :zinc alloy body , locking nut ; zinc plated steel shaft ,stopper platemirror polish surface for stainless steel looking Structure : L-shape handle having watertightness functionhandle turning angle : 60the left-hand or right-hand use can be changed by changing the position of housing applicable panel thickness :1.5-10mm; stopper plate installing position can be adjused from 35-48 Remarks single point, double point and three point stopper plates are available