The Bone Tie Pro 4 Phone Mount is a universal bike phone mount for all smartphones with screen sizes from 4. 7-7. 2" thanks to its unique x-shaped strap design. The Bone Tie Pro 4 can attach to various types of handlebars, baby strollers and shopping trolleys so that you can mount your phone on the go. It is built with excellent flexibility and handlebar compatibility to fit bike handlebars of different sizes. The Tie 4 Pro offers full screen access and doesn't inhibit your Face or Touch ID security functions. It has been constructed using flexible organic silicone that is eco-friendly and absorbs bumps and vibrations to keep your phone protected. With the security of the Bone Tie Pro 4 Silicone Phone Mount and its universal mounting system, you'll be using it everywhere you go in no time!