This cargo basket is so useful, once it's mounted on your roof rack you won't ever want to take it down. Sized for larger vehicles like trucks and SUVs, this 52"L x 48"W x 6.5"H basket has the capacity to carry gear you don't have room for or may not want to carry inside your vehicle, including luggage, camping equipment, sports gear, gas cans, and off-road accessories. And the dimensions of the basket can be expanded with the addition of an optional 22" extension. A cargo basket is really great for odd-size items that can be difficult to secure on a roof by themselves. Load them into the basket, secure with the optional cargo net and you can be on your way.