Just recieved a really nice model of uss blue back from steve neil in us, the boat is a vac form with resin tower, fins , resin ribs to give the hull strength, prop, cd, this is a big hull at 1,72nd, lots of hull detail, and its a really good price , under 150 with postage, check out the sub pirates web page, he does pay pal, and he is a nice guy , pete