GMYLE(TM) Heavy Duty All Weather Waterproof Tough Case Adjustable Holder Bike Cycle Cycling Handlebar (16mm - 25mm) Mount for Smart Phone (iphone 4/4S/5 , Samsung Galaxy S1/S2/S3/S4) [IPX7] A waterproof hard shell Tough Case provide protection for your phone in all weather. Designed for Smart Phone. It provide a secure and dry in most riding conditions. With its solid case, it can withstand withstand daily use and will protect against wet / damp weather. No tools required. Fit and install easily Protect your phone from scratch, shock and splash free when riding out on the road or trail. Also, it will be a cushion against knocks or bumps and reducing shock if dropped. With a STANDARD hinged bike handle bar mount, which is suitable for handlebars with a diameter between 16mm - 25mm. Simple one screw fixing makes fitting quick and easy.