The pair of DP-SOER1 21" Detachable Aluminum Rail from Dynamic Perception is used with the Stage One System. The set includes two 21" threaded, detachable, aluminum rails made using precisely machined tubes and inserts to ensure seamless alignment and at least one mid-span support. This Extension Set requires a Stage One Hardware Set (sold separately), which includes a fully functional cart and end brackets.
The Extension Set adds a specified total length to your slider. The mid-span support keeps your cart on the rails and provides an attachment point for standard supports, including tripods with 1/4"-20, 3/8"-16, or light stand heads.
Note: Carbon fiber and aluminum extension sets should not be mixed in the same rig.