This listing is for a set of two (2) single-string bending units. Easily add full note string bending capabilities to your lap steel or electric guitar (with top-loading hard-tail bridges) with no drilling, routing or other permanent modifications to the instrument! They were invented by Dana Valley, and each one is custom milled, tapped and shaped in the C. B. Gitty workshop, using his original designs and made-in-the-USA laser-cut parts. PLEASE NOTE BEFORE BUYING: WHEN INSTALLING AFTER-MARKET PARTS LIKE THIS ON VALUABLE MUSICAL INSTRUMENTS, YOU BEAR THE LIABILITY FOR DAMAGE THAT MAY RESULT. This kit MAY NOT be compatible with all styles of hard-tail bridge. The stainless steel lever parts that come in this kit have been custom cut and tumbled, but may still have some sharp edges that can scratch the surface of your instrument if not correctly installed. You may need to file/smooth edges or otherwise adjust the parts to your specific installation needs. BE EXTREMELY CAREFUL to dry fit and pay attention during install to make sure your instrument will not be damaged by the location and movement of the B-Bender lever. Review all installation videos and diagrams carefully before proceeding. We make no warranty of any kind, beyond the functionality shown and described for a standard installation this product, and we are not responsible should you damage your instrument during/after install by using it.