Springfield's 1100021-1 Non-Locking Trac-Lock 2-7/8" Swivel is constructed of high-strength aluminum with a powder coat finish. The swivel rotates a full 360° and adds 3/4" to the height of the pedestal. Designed for use with 2-7/8" fixed height pedestals. Includes bushings for a snug fit. 5-year warranty.