Portable screen in tubular aluminum case. Easy set-up - put it on the floor, open the case, and lift with one finger to desired height. Lightweight, spring-roller operated. Includes 3/4" black borders and 30" black "rise" to clear a standard tabletop. Surface raises at the touch of a finger. Pneumatic cylinders hold screen securely at desired height. Available in 60" and 80" diagonal NTSC format and 55" and 73" diagonal HDTV format. Remarkably inexpensive, considering its high quality.