Pack of 15, Swivel Pendant - Malleable Square Fixture Hanger – 4 Inch. This listing is for a pack of 15 pieces, Morris Products item # 18093 (UPC 601986180931). These metal square light fixture hangers are used to support light fixtures, security cameras, exit signs and a variety of electrical and electronic devices installed in industrial settings. Pivot ball that allows the installed fixture and pipe stem to swing 20 degrees from vertical when subjected to occasional bumps or vibration. Fits 3/4" conduit. Includes reducer bushing to 1/2" with set screw. Fits standard 4" Square electrical boxes. UL Recognized