This pedestal has a 360° rotation with a locking knob. Seat spider mounts with locking paddle handle and adjusting knob; 360° rotation make this option very convenient. Constructed of anodized aluminum, stainless steel and black powder-coated steel components. The top plate is corrosion resistant and can handle loads up to 350 lbs. Technical Issues: 1. 2 7/8" polished anodized aluminum post 2. 360° rotation with locking knob 3. 9" diameter base with recessed mounting hole PROS Is suitable for practically all marine brands AD certified per ABYC standards CONS Not USA made