Activate your Spring-Lock™ pedestal with the push of a button. The Spring-Lock locking latch extends from the pedestal post and hooks onto the bottom of a base. Pedestals are machined to .002 tolerances and will not wobble. Stainless steel Spring-Lock™ Posts allow you to create your own seat unit. 1.77" diameter. Available height: 13-1/2", 15-1/2".