Placed directly into the met-in space reduces scratches on helmets, luggage and met-in bottom. Designed specifically for ADV to fit in met-in The thickness of the product is about 0.04 inch (1 mm), so it does not compress the space of the met-in and will not affect the storage of the helmet. Compatible models: Honda ADV150 (2BK-KF38) *If you are concerned about it slipping around inside the met-in interior, please use double-sided tape to fix it appropriately. It does not protect the sides of the met-in.