The SeaSucker Trike rack is designed specifically for three-wheelers. There are two platforms with wheel hooks, in addition to a wheel strap that holds the front or rear wheel to the car's roof. Like all SeaSucker racks, it attaches and removes in seconds and fits on virtually any car. What's in the box: Two trike platforms with wheel hooks rear wheel strap 5g Lube Tube for vacuum pump maintenance Spare SeaSucker vacuum mount