The Photek Add-On Crossbar Kit consists of two background add-on plates and 1 set of SO-4023-4 crossbar kit. This enables the use of two fabric backgrounds on one S4010-4 background support system. The two background add-on plates slide over the existing stud on the SO-4010 stands. These plates have an additional stud form mounting the second crossbar kit.
Installation is easy; just slide the 2 crossbar platforms over the studs on your existing Photek background support stands and tighten the locking screws.
Assemble the crossbar and install a second fabric background (up to 12' in width). Mount the new crossbar with the background installed over the 2.5" stud on both ends.