The RAM® Adapt-A-Post™ Track base will quickly slide and connect to most kayak track systems. Compatible with the full line of RAM® Post and Spline rod holders, the RAM® Adapt-A-Post™ offers a unique locking mechanism that allows the user to insert the post from any direction. Thanks to this efficient design, you no longer need to align your post in any specific position before inserting. Just drop it in and you’re ready. To remove, simply press and hold the side button and your post will come out effortlessly. With an innovative combination of ease and security, the RAM® Adapt-A-Post™ will quickly become one of your favorite kayak accessories.T-Bolt Dimensions: .48" x .95"