These Anti-slip mats are specialized for battery packs placed on FPV multicopters. The mat provides ultra-grip between the battery pack and platform frame. This helps to stop the battery pack moving so you don’t have to over tighten the battery strap and damage the battery pack. In addition, the battery pack will not project forward and fall off if the muticopter hits an immovable object. The mat can also be used on any other RC product. If the surface collects dust, then just rinse it under water and it will look like new. The mat comes in three different sizes.