QUICK RELEASE SYSTEM - The Fish Fighter Quick Release System (QRS) was designed and developed to help you easily adjust the location of your rod holders, rod risers, fishing tackle, fishing pole holder, boat lights, or any other fishing product that you can bolt to your boat. MOUNT YOUR ROD HOLDERS - Get your fishing equipment organized quickly and easily with the Fish Fighter sliding rail system - sliding block. The sliding block fits all major brands of rod holders for boat. Brands such as Cannon, Scotty, Cabelas, Folbe, FishOn, and Attwood all work with our system. LOCKING PLUNGER - Pull and twist the locking knob to easily slide the block and lock it back into place. Made in the USA with globally sourced materials. Fits Either style Fish Fighter Products Rail System Bolt pattern matches Most Major Rod Holders Such as Cannon, Scotty, Cabelas, Folbe, FishOn, or Attwood Rod Holders. Our Sliding Rail System is a system that will allow you to easily adjust the location of your Rod Holders, Tackle Trays or just about anything you can think of. Fishermen have been asking for a commercial grade, sliding rail system for their boat and we’ve answered the call. Not only can you install your Rod Holders onto our Rail System, you can also mount our Tackle Trays to the Sliding Block or QRS Quick Release using one of our Optional Adapter Brackets. Getting your boat organized has never been easier. Once you decide on which length rail and how many rail sections / Kits you want. You will need to select How many Sliding Blocks (sold separately) You want. You may also want to add on our adapter bracket so you can install any of our Fish Fighter Storage Trays.