Abstract: An improved stripper rubber for a rotating blowout preventor. The stripper rubber has an upper annular area attached to the lower end of a metal support member. The support member extends upwardly into fixed relationship respective to part of the rotating head of a rotating blowout preventor. The stripper rubber downwardly depends into concentrically arranged, spaced annular body members. The inner annular body has an axial passageway formed therethrough for telescopingly receiving a rotating member in sealed relationship therewith. The outer annular member has an outer circumferentially extending wall surface which rotatably engages the lower marginal end of a washpipe. The inner and outer annular members are made integral respective to the stripper rubber, and are separated from one another by a downwardly opening annular recess.