Accessories Reflectives Polaris-bikewear Rbs Sticker. These RBS (Really Bright Stuff) Reflective Bike Stickers are ideal for sticking on the sides of your bike, and your childs bike, to increase your visibility to other road users. Great for use in areas where your lights offer less coverage. Made from a weatherproof material which is lightweight and highly visible, making these stickers an essential piece of your commuting kit.