The Kuu Gum Stone (Soft) is a versatile tuning accessory designed primarily for removing rust and detuning the edges of skis and snowboards. With its soft abrasive texture, this stone is ideal for gently cleaning oxidation and surface rust from steel edges without compromising their sharpness. It's also commonly used to detune the tips and tails of skis or boards, reducing edge catch and improving handling, especially in park or all-mountain conditions. Compact and easy to use, the Kuu Gum Stone is a must-have for both casual riders and professionals looking to maintain smooth, clean edges between full tuning sessions.