The Padded Saddle Bag is made specifically for all those old schoolers out there still using the 20MM rocket boxes. It measures 8"x15"x20" for a snug fit for a groover box or that heavy duty 1st Aid kit. It has 1/2" padding to protect you and your boat from all of the hard metal edges and corners. The lid is secured with 4 cam buckles and has attachment grommets to strap around the thwart. With a beefy handle and the standard Tuff River Stuff overkill in construction, you can easily grab this from the boat and carry it to the beach.