Balance Rudders for electric boats and scale Models with realistic blade forms. 107-00: Blade size 25x42 mm (ABS), shaft 3mm brass, nylon tiller arm and ABS tube. 107-01: The same construction, blade size> 30x49 mm. 107-02 for the bigger scale Models. 4 mm stainless steel shaft and hard brass bearings. Tiller arm with a non slip connection( 26 splines). Blade size: 36x60 mm. 107-30/31: Balance rudders for speedboats up to 3,5 cc.107-30: Blade 22x40mm, 107-31:35x47mm SS Shaft and hard brass bearings 107-04: Slanting Rudder for the competition boats, to make sharp corners. Shaft 5mm SS, tube>brass and hard brass bearings. 107-39/41: Nylon Tiller arms with 26 splines and 3-4-5 mm hole.100-01: Water scoops: Brass with rubber rings. 107-05 / 107-06: Rudder construction for general use.