These 300mm long rods are one of the basic building blocks of all SYMPLA rigs, & are always used in parallel pairs to create a track which allows components to be mounted and positioned correctly. Rods can be united to make longer tracks (using the included screw junctions), joined at different heights using the V-Offset component, or shifted laterally using the H-Offset component. Although the possible uses are numerous, these long rods primarily serve as the track for SYMPLA Fixed or Variable Plates, since the extra length allows a wide range of camera & lens (& viewfinder) combinations to be correctly positioned for the operator and for other SYMPLA components, such as the Flexible Matte-Box. Made in 15mm diameter tubular aluminium for strength & reduced weight, 300mm Rods are the longer of SYMPLA's two sizes. Supplied as a pair, with two 1/2”-13UNC screw junctions included.