Specification: 1.Portable floor pull up screen is packed with case.It is convenient to carry the demands of business and home theatre. 2.Significant design,and the the support structure is stable. 3.Air pressure spring can let you adjust the screen at any position. 4,High quality fabric keeps your image clear and vivid. 5.Diagonal:60 inch/80 inch/100 inch. 6.Material:Matte white. 7.Gain:1.2 8.Visual angle:55". 9.Cover length:141cm/180cm/218cm.