Selbst Waterproof Sleek and Stylish Bicycle Saddle Bag by Cycling Seat Pouch Strap on Bicycle Tail Rear Storage for Cellphone Smartphone Reflective stripe design increases safety at night Made from Safety and high shake resistance material, rainproof with a bag mount casing design which you can use as a storage for any small belongings like bicycle repair tool, smart phones; Fast and easy installation Special anti-skid zippered pocket for easy taking out of items Inside lining is PE cotton,provide double solid support effect, reduce shock and improve items safety in bag Ribbon type fixed installation,easily to remove and install