EGO BIKE Black Motorcycle Trunk Tour Pack Luggage for Harley Honda Yamaha Suzuki Cruiser Motorcycle Luggage Tour Trunk Tail Box with Top Rack Backrest The trunk comes with a very nice molded and upholstered backrest and a functional steel top rack. The trunk is extremely spacious and will hold two full-size helmets. It's Fashion, Creative, is a very useful accessory, also as a gift. Premium locking with 2 keys deluxe wrap around dual cushion backrest top rack included (drilling required) top rack dimension: 18"L x 9"W x 1.5"H.Accessories included ( screw, nuts, washers) mounted on any Yamaha, Honda, Kawasaki, Suzuki and Harley with flat luggage rack size 8"x8 Large space to fit 2 helmets ready for custom paint inner dimension: 21"L x 14 1/2"W x 10"H outer dimension: 22"L x 15 1/2"W x 11" H Motorcycle touring trunk with top rack & backrest material: abs plastic color: vivid black You need to have a luggage rack on your bike to install this trunk, if your bike does not have a luggage rack, please ask your local mechanic for help, professional installation recommended. This Trunk is not custom made for any bikes, please check to ensure if it will fit your bike, Comes with assembly instruction, not installation instruction. Professional installation recommended.