Want more control options for your GRS flight stick? This TOS restrictor kit lets you switch between a 4-way gate (perfect for digital inputs like old-school games) and an 8-way gate (great for diagonal movements in flight sims). It’s an extension kit that modifies your stick’s movement for more precise input. Note: You’ll need a separate TOS controller board (sold on their official site) to enable the switching function. Once installed, you get versatile control tailored to different games or sims. Ideal for sim enthusiasts and retro gamers who want one stick to do it all. Upgrade your setup and feel the difference!