3-1/2" Rotary Lever Operated Drain Opening with FlangeRotary lever operated drain outlet fitting for 3 1/2" opening, 4 1/8" O.D. top flangeNickel plated bronze waste body with stainless steel face flange and perforated gridChrome plated brass 1 1/2" x 4" tailpiece and stainless steel lever armDimensions: 4-1/8" L x 8-5/16" W x 8-5/16" H12" arm