Features: Adopting a foldable design, it can be folded into smaller sizes as needed, making it easy to carry and store. Made of 600D polyester+ABS material, it is wear-resistant and waterproof, effectively protecting internal items from moisture and external impacts. Our durable and waterproof bag features multiple compartments, side pockets, and mesh dividers, ensuring your tools and accessories are neatly organized and protected. Suitable for two track saddle (paired expansion racks), with a compatible width spacing of 36mm/1.42inch between the brackets and the saddle rail, and a height spacing of at least 30mm/1.18inch. Perfect for cycling enthusiasts, long distances traveler, and daily commuters, our tool bag is a versatile companions for all cyclist. Specifications: Material: 600D polyester+ABS Color: Black/DesertColor Unfolded size: Approx. 31x27cm/12.20x10.63inch Folded size: Approx. 14x10cm/5.51x3.94inch Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1set Bicycles Saddle Bag