Full 360? rotation. Twist control drag affords selected drag for rotation. Internal delrin bearing cup engages in 10 degree increments for positive lock when tightening. Dual quick lock handles - lever actuated, positive lock engages immediately. For use with any 2-7/8" diameter fluted stanchion pedestal seat base. Meets ABYC-H31, Type A seating standards. Finish Powder Coat Fits Ribbed Stanchion Series