The Scimitar Series has a name change and is now the S-2 Series. The design still feature the same narrow, swept-back blade profile and undercambered blades for high thrust and lower noise. The S-2 is the second generation - the molds have ben redone for better balance, nicer parting lines and less flash. Not only that - we've added 11 new sizes, inluding the long-awaited 9 x 4, 14 x 6 and 7 x 6. We've also added an 11 x 4, 15 x 6, 15 x 8, 16 x 6 and 16 x 8. They are made of charcoal gray glass-filled nylon.