Combo: Boss Adapter plus DBA-02 Desmond 60mm QR Clamp w Level Arca / Bogen 3157N Compatible 3/8" w 1/4" Adapter for Tripod Head combination of the boss adapter and the clamp will fit virtually any Manfrotto head and produce a head that is both Arca & Bogen compatible. Arca-Swiss & Bogen 3157N Compatible Includes removable bubble level 3/8"-16 thread with metal 1/4"-20 Adapter Manfrotto 200PL-14 RC2 compatible