Leader Tripod Screen\n\nProfessional quality tripod screens with positive height adjustment, built in keystone correction arm. a Variable format from square to video or widescreen by simply raising the case on the mast. a Integral Keystone eliminator for OHP use. a Positive lock height adjustment. a Durable Matte White cloth is washable. a 240cm version rotates on mast to required viewing angle. a Black vertical borders, black case and top bar create a visual frame to your image.