The Manfrotto adaptor MSQ6 allows you to fit the Manfrotto Q6 quick release system to an existing photo head.
It fits to Manfrotto heads: MH054M0, MH054M0-Q2, MH054M0-Q5, MH055M0, MH055M0-Q2, MH055M0-Q5, MH055M0-RC4, MH057M0, MH057M0-Q5, MH057M0-RC4, 468MG, 468MGRC0, 468MGRC2, 468MGRC3, 468MGRC4, 468MGRC5.