Give yourself a little insurance to stay on the water with the Hobie Mirage Drive Spare Parts Kit. The Hobie Mirage Drive Spare Parts Kit includes a fin, mast, sprocket, set screw, allen wrench, chain, clevis pin and ring and a cotter key. All in a handy zippered pouch. Don't waste a day on the water when your Mirage Drive could easily be repaired. Available for Version 1 (V1) and Version 2 (V2) mirage drive. V1 drives have a set screw in the sprocket, V2 have a threaded sprocket. You know what they say "Be Prepared..."