[𝐅𝐄𝐀𝐓𝐔𝐑𝐄 𝟏] Great components to support additional crossbar, turn your backdrop into double darpery (additional crossbar is needed), perfect for wedding or photobooth purpose. [𝐅𝐄𝐀𝐓𝐔𝐑𝐄 𝟐] Simply adding this supporting clamps to the bottom of your backdrop (additonal crossbar needed). Instantly turn your backdrop kit into step & repeat or portable movie projector frame. [𝐅𝐄𝐀𝐓𝐔𝐑𝐄 𝟑] If you have a damaged or torned upright slot, you can use it to fix it. Turn your damage upright alive [𝐔𝐍𝐈𝐕𝐄𝐑𝐒𝐀𝐋 𝐅𝐈𝐓] Great quality with flexible adjustment that can fit most of 1.5" to 2" upright diameter [𝐈𝐍𝐒𝐓𝐀𝐋𝐋𝐀𝐓𝐈𝐎𝐍] Easy setup with no additional tools require to bond together with your upright. Slot opening in 3 way directions that are flexible for multiple purpose This is for 2 pcs of pipe & drape backdrop support clamps only.