When you need an adjustable seat you can have one. Just pick up a Wise Adjustable Seat Pedestal. This pedestal is adjustable from 13” to 17”. It fits all seat brands with a 4 bolt BIA system. You can swivel the full 360 degrees and hold on to the easy grip handles while you do. The powder coated aluminum base is durable and long lasting and has a 10” diameter base.