Machined aluminum crossbar with pre-drilled holes for attaching to MyStudio™ 20 and MyStudio™ 32 light stand legs and the fluorescent lamb/bulb combo fixture. If you are purchasing or already have a MyStudio™ 20 or MyStudio™ 32 system, an extra crossbar can be used along with an extra fluorescent lamb/bulb combo and reflector to widen your existing light stand to provide additional light coverage, and also may be used to create one of our Deluxe systems (MyStudio™ 20 Deluxe and MyStudio™ 32 Deluxe), which are created using a doubled up MyStudio™ 20 or MyStudio™ 32 cyc (2 cyc backgrounds placed side by side) and adding an extra crossbar, flurorescent lamp/bulb combo and reflector MYS 20 or MYS 32) to create a wider light stand.