Easy Fit Anti-Shock Impact Motorcycle Bike Mount for Galaxy S3 GT-i9300 A Dual layer anti-shock protective case dedicated to the Samsung Galaxy S3 / GT-i9300 supplied with the popular Easy Fit bike handlebar mount. The holder consists of a Polycarbonate outer shell along with an anti-shock silicone liner. This case remains true to the Galaxy S3 contours. All function areas including the camera, speaker, volume, hand strap, power button remain accessible. Protective flaps over the headphone & charging ports. The outer hard shell incorporates the Ultimate Addons 3 prong attachment system which the Easy fit bike mount fits to. Hinged fitting for handlebars with a diameter between 21mm - 30mm. Simple one screw fixing makes fitting quick and easy - NO TOOLS!