Helmet Storage Rear Trunk Rear storage compartment will accommodate two helmets or other large items (nearly 3.5 cubic feet), Quick-access drink holders built into the side, Features a comfortable backrest and seat cushion, Two draw-tight latches secure the lid, Provides plenty of additional weather-resistant storage and added comfort, Mounts directly to tubular and composite racks using four U-bolts and sealing washers, Rugged roto-molded design, Dimensions: 37.0" W x 25.0 " D x 17.0" H, Made in the U.S.A., Not to be used as a seat while riding.