Chief SLBLEGW Highlights For Use with the Chief RPM, RPA, RSM, & RSA Projector Mounts and with Projectors with More than 4 Connection Points Features Ceiling-mount your projector with your compatible mount and the white Chief Universal Projector Leg Accessory. It connects Chief RPM, RPA, RSM, and RSA mounts to projectors that have more than four connection points, allowing for a more secure installation.
eBay