Banjo Brothers 03009 Mini Deluxe Seat Bag is the perfect size for the road essentials: spare tube, tire levers, mini tool, or change/keys if you are so inclined. This seat bag is 33 cubic inches in size, with dimensions of 5.5-inches long x 3-inches wide x 3-inches high. This bag is made of 1680 denier ballistic nylon exterior fabric that wears like iron to keep all of your valuables safe while on the trails. Both the top and bottom are padded for extra support and the gusseted sides help keep things in place when you open the bag. This deluxe Banjo Brothers bag features three interior pockets to keep tools and other sharp objects away from your tube. To keep your keys safe from dropping or getting lost, there is a key clip tether on this seat bag.