Roswheel Bicycle Frame Top Tube Pannier Made with 600D polyester and padded with PE cotton, solid, durable and in good shape Fixed securely with 2 adjustable Velcro straps and 1 elastic cord, quick installation and release, suits for the most road, mountain and commute bike 1 liter capacity, perfect for holding daily essentials, cycling accessories and small biking tools and gears Reflective elements on 2 sides for increasing visibility in dark or reduced light Anti-slip PU leather bottom to help fix firmly and stand upright