The RC Shell Bank concept is as follows: We stock 20x16, 22x16, and 22x18 bass drums; 8x7.5, 10x7.5, 10x9, 12x8, 12x10, 13x9, 13x11, 14x10, 14x12, 16x14 rack toms; 14x14, 16x16, and 18x16 floor toms. You can pick and choose which sizes work best for you. We here at DCP are happy to help you make the decision if you have any questions. Since this is an ebay auction, we are making the auction as a 4 PIECE SHELL PACK, drums only, 20x16, 10x7.5, 12x8, 14x14. We can switch drums out as needed. Feel free to call if you have any questions regarding anything Yamaha drums.