This spacious storage box is just what you need to keep your on-the-trail necessities where you can get to them in a hurry. Constructed of weatherproof polyethylene, it's equipped with U-bolts to secure it to the rack. Weatherproof stripping along the inside edges seals out moisture and dust. Side compartments open independently and are individually lockable. Padded seat and backrest create a place to rest when you're stopped. Not meant to be used as a passenger seat. Dimensions: 39-1/2" x 22" x 16".