PPB projector mount model is the only projector mount that offers ceiling & wall mounting options in one out-of-the-box solution. This versatile, ready to install mount model offers the convenience of installation to the ceiling or the wall & provide drop length options without the need of additional accessories. This mount models provides the first true comprehensive projector mounting solution in a single package. All projectors with M8 mounting screws require ACC-M8RI inserts for compatibility with any Peerless-AV projector mount, please refer to the Recommended Accessories