Our Heavy-Duty Seat Base is removable, swivels and is easy to install. We made it from High Density Plastic that is designed for commercial use. Many of the Guides that are on the water day in and day out complained that their seat bases wear out and just don’t hold up. They also wanted a swiveling seat base that allowed them to quickly remove the seat from the seat box. We solved all of that with our HD Seat Base. We 1st worked on making a seat base that would hold up for years of continuous use. We achieved that by using a super strong plastic, with high wearing properties. Then we focused on making the swiveling portion not only strong but easy to swivel. We achieved this by making an over sized load bearing support column. Then we worked on making the seat base easy to remove. We solved this by using a billet aluminum locking rod that quickly and securely locks the seat in place. When you want to remove the seat, just slide the lock rod out and slide the seat off. We truly believe this is a product that will last you generations to come. Made right here in Idaho from the finest materials and finest in craftsmanship. We believe in this product so much that we offer a 30-day money back guarantee.