Pioneer Audio Visual Equipment supplies Tripod Stand. Pioneer Audio Visual Equipment manufactures projection screens of all sizes and types used for Front and Rear Data & Video LCD/DLP Projectors, Slide projectors and Overhead Projectors. Tripod Stands are portable and consist of a height adjustable upper pipe with a folding tripod base. They are used to suspend MMR [Map Manual Rollback] screens. They are available in two sizes - regular and big.