Using this Bike Tie smartphone holder is a breeze. First, find the bar where you want to mount it, be it a bike handlebar or another type of bar. Then, attach the holder to the bar. After that, pull the strap tight until it fits the bar snugly and your phone fits in the holder well. When choosing a phone to use with it, make sure the phone size is between 4.7 inches and 7.2 inches. As for maintenance, since the silicone is washable, you can clean it with mild soap and water when it gets dirty. Keep in mind that although it's non - slip, don't expose it to extremely rough movements to avoid any potential loosening of your phone in the holder.