SideKick Frame bag offers 2 mounting options. Mount to Braze-on inserts common on most bikes or mount with included cut-to-length straps that are anti-slip and anti-scratch. Aerodynamic shape offers clean look and easy access to items. - Mounting: Mounts to water bottle mounts common on most bikes for clean look (comes with SS Screws) or use the included straps - Large Capacity: Side Kick is large enough for your phone, wallet, snacks, or other items you want close at your hands. Size is 9" x 4.5" x 2". - Durable & Very Waterproof: Made with PU and sealed construction. - Easy Access: Glove-friendly zipper pulls and large opening.