The Van Staal Power Grip Handle Knobs are machined out of 6061-T6 aluminum and are designed for an ergonomic grip that reduces fatigue during long battles. The knobs come in two sizes; one to fit the VS100, VS150, VSB100 and VSB150 model reels, and one to fit the VS200, VS250, VS275, VS300, VSB200, and VSB250 model reels. Each size is available in gold, silver, or black to match the color reel that you own. They come complete with handle bushings and stainless steel hardware ready to install.