This is the Subarmine Motor Mini (High Speed Type) by Tamiya

FEATURES: Easily distinguishable red casing with white screw and rudder
          35mm suction cap and a 50mm auxiliary board included
          At the rear of the body there is a rudder that allows you to set
            the direction of movement
          By completely closing the body, the motor switches on
          Due to different motor winding, the included motor is approximately
            40% faster which produces its higher speed (1m/3.2sec)
          O-rings provide the Submarine Motor with excellent waterproof
            qualities
          Uses 1 AAA alkaline battery (sold separately) for an approximately
            1 hour running time
          Illustrated instructions included

INCLUDES: One Subarmine Motor Mini (High Speed Type)

REQUIRES: Assembly
          Hobby knife (RMXR6901)
          Side cutters
          One AAA battery (FUGP4402)

COMMENTS: Due to small parts that could cause a choking hazard please keep
            away from children 3 years of age and younger

                                                                    tlh 7/31/09