Features: Durability high strength aluminum alloys bike saddle bag mount ensures stable attachment during rides, while the waterproofed nylons interior keeps belongings dry in wet conditions. Featuring a roll top closure with buckles, adjustable capacity (3L/5L/7L), and easy installation via included straps and wrench, this light weight yet accessory adapts to varied storage needs. Ideal for cycling enthusiasts, commuters, and outdoor adventurers seeking reliability gear storage for road bikes, mountain bikes, or electric scooters during long distance tours or daily rides. Securely carry essential on bumpy, rainy commutes, or crosses country journeys, with reinforced anti shake design preventing loosening even on rough terrain. Compatibility with most bicycles frames and scooters, this versatile bike accessory combines practicality and durability for seamless integration into cycling, travel. Specifications: Color:Three Choices Dimension:9×15.5cm/3.54×6.1in Component:aluminum alloys Package Includes: 1Set Bicycles saddles bag rack note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.