Smart phone bag makes it easy to take your phone with you on your ride, compatible with regular or plus-size phones up to 3.5 inches width and 7.8 inches tallQuick and easy installation frame mounted bike bag with tool-free hook and loop attachment system ensuring compatibility acorss different bicycle modelsSecure zipper closures for main compartment keep your belongings safely enclosed, helps keep out dust, dirt, and moisture, add an extra layer of securityFully touch-screen compatible smartphone pocket can help you interact with your smartphone without removing it from the pocket, making it easier and safer to check maps, or control music while ridingTop tube bag is compatible with most adult bikes perfect for additional storage space for your essentials like tools, keys, or small wallet