Expandable Snap-on saddle bag for road bike with 3M reflective straps and LOGO provides better visibility in dim light or at night and added capacity. Perfect for wallets, keys, tools, tire levels and other small items. Taillight mount is for additional safety lights. Versatile sports travel bag, handle bag, messenger bag, shoulder bag and mountain bike rear pannier bag. It has unique design and remarkable color combination. With large room and function ideas, this mountain bike rear pannier bag is a wonderful choice for daily commute riding. roswheel bicycle bags is the convenient, secure way to carry essential gear.