This model lacks alot of detail. Compared to other U-Boat models I've built in the past, this one has only 6 steps to do where other models have about 30 steps to do. Everything about it is so easy, especially the conning tower. The conning tower for this model was finished in less than 5 minutes, where other model's conning tower take 10 minutes to complete. There are no rivets or welds on the hull and the conning tower was only the basic stuff, periscopes, hatch, and anti-aircraft gun. This model is not worth the money, and I suggest buying something else.