This extensive kit features 9 models of historic and current SLBM’s of the soviet Union and Russia. Included are the SS-N-4 Snark, SS-N-5 Sark, SS-N-6 Serb, SS-N-8 Sawfly, SS-N-17 Snipe, SS-N-18 Stingray, SS-N_20 Sturgeon, SS-N-23 Skiff, and SS-N-30 Bulava. all are well detailed, some with removable parts. Most have relatively simple construction, but some are more complex that others. 3/5 difficulty for most.