Built from high-strength aluminum with stainless steel hardware, Springfield pedestals and sliders resist weathering and salt corrosion. Easy to install swivel seat mount for pedestal post. Rotates 360° and locks in the straightforward position. Grey powder-coated finish. 5-1/4" fore and aft travel on self-lubricating pads. Large 7-1/4" x 13" seat mounting platform. Centrally located locking handle is easy to reach. Grey powder-coated finish | Trac-Lock Locking Swivel with Slide, 2-3/8" in Grey