"My son loves it...like obsessed! The ship itself comes in 2 pieces, you snap together and you continue to build on top. The length is 24 in. It actually floats! We had lots of fun assembling all the additional parts. We love the variety in this box: the submarine, the diver, the helicopter, and even a shark & manta ray! I also appreciate that the crew was a good mix of men and women. The detail is incredible, with a keyboard, and even mugs used to drink for the crew. I love that the crane on top can rotate. The parts are easily removable and many compartments make it fun for much longer than expected. So much fun, even for me!"