L.T. Marine swivel spacers are precision-machined from solid 6061-T6 aluminum and anodized black for long-lasting durability in saltwater conditions. Designed to integrate seamlessly with L.T. Marine swivel base rod holders, they raise the swivel floor by 2 inches to properly accommodate #2 short bent butts, and installation is quick and straightforward with a simple drop-in design that aligns with the existing swivel.