BlueDot Trading backgrnd-stnd-1ea-black-wht Photo Studio Background Support Stand System Kit (Black/White) Supports backgrounds with crossbeam inserted into sleeve sewn into background material, or by clamping background to support stand (clamps not included). Support stands have tripod bases with a stable 24 triangular footprint. Two (2) included support stands are adjustable height between 30 and 7 Foot. Each support stand is topped with a bolt with  inch threading. Crossbeam attaches tightly and securely to support stands with washers and wing nuts. Crossbeam support bar width adjustable ~ set at 5, 7.5, or 10 Foot (using 2, 3, or 4 segments)