This is an aluminum carry case that is not currently in BERMAS's lineup. I purchased it about 18 years ago and took it overseas twice. I've used it a few times for domestic travel as well. It has scratches and dents from being thrown around as checked baggage at the airport during the first trip (does not affect use). The wheels (casters) are not swivel casters. It has one key and a combination lock (combination can be changed). Carry case size...M (3-7 nights) Features...Hard case Accessories...Key