Buybits Waterproof PRO Cycle Bike TOUGH CASE Mount for the Apple iPhone 4S (sku 13551) Robust heavy duty TOUGH case is for the Apple iPhone 4 & 1S with Professional Motorcycle / Bike handlebar mount. Fits handlebars 19mm-35mm. Min space of 42mm required to fit. Bespoke silicon liner for the iPhone 4 & 4s only. All function buttons accessible. Clear touch lens is very responsive. Use of the iPhone not comprimised. High quality Bike mount. Secure screw fix. Case can be removed from mount for security. Case designed to IPX4, all weather, will keep your iPhone 4 secure and dry in most riding conditions. The solid, robust case has been designed to withstand daily use and will protect against wet / damp weather, knocks and bumps. Case includes removable lanyard. To ensure the case is correctly located click firmly in to place.