Short manual wall projection screen manual projection screen, with 360 ¡ã or pull the stop device can be down to the required projection screen anywhere, gently place automatically locked, hand portable, flexible; shell spray processing, case colors; bead curtain, white plastic curtain optional; specifications 1:1,4:3,16:9, special specifications can be customized; packaged with corrugated boxes for packaging, the use of cellular lined with cardboard, to undertake foreign OEM.