. Optoma offer a wide selection of quality front projection screens suitable for any situation from small meeting to large conference rooms & great for home cinema applications. Pull down the screen & hold for 3 seconds then release. The screen will stay at the desired position. Optomas unrivalled understanding of both the market place & emerging technologies has allowed us to utilize our expertise to further expand our product offering to cater for every requirement whilst still delivering great value. PMG+ projection screens are popular because they are inexpensive & easy to operate. Optoma Manual Screens offer Selflock & Controlled Screen Return Features 109 Inch Diagonal 16.10 Screen Controlled Screen Return Selflock Border size 4.7cm .