Trac-Lock Swivel/Slide Non-Locking Mount for 2-3/8" Post
Trac-Lock slide and swivel seat mount are for a  2-3/8 in. post.
Features:
Travels 5-1/4″ Forward and backward with fingertip control
Self-lubricated pads provide a smooth, easy glide
Made of high-strength aluminum
Rotates 360°
Powder-coated swivel prevents corrosion
Fits 2-3/8″ posts
Specifications:
Platform (inch): Large 7-1/4″ x 13″ 
*5-Year Limited Warranty
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.