*Professional desig : Foldable aluminum framework,lighter,casier,suitable for carrying&storage .with CE &Rohs certificate. Applied to temporary places *Absolute Pure-even: We apply the way of four-side position with many point in order to satisfy the strict requirements of the big-size project screens,promising large-spanned mirror-like even scenes. *Convenient Install and operation: This product is installed and operated conveniently.Without any tool,using strong anti-deshed transportation packages.it can be pulled up or pulled down with handle screws.(It only takes three minutes to complete,even if it is up to 200').The super-strong anti-shock packing used. *Flatness and Distortion-free The screen of front projection uses the imported white plastic soft curtian,with the exquisite texture,smooth quality and 100 angle of view.The gaining coefficient is about 1.0 times,which guarantees clear lift-likr picture and prefer colour.The quality material is soft and flat,not easily to be distorted.Teh screen od rear projection uses the PS rear-projected cloth which is imported from German with high diaphaneity and 100 angle of view.The quality of the material is soft and flat,can be used and folded repeatedly,not easily to be distorted and spoiled. *Application: Applied to temporary places,for example the Expo,concerts,banquets,and big business activities.