Scorpion 3mm Prop-Saver Adaper[PropSaver3mm]This Prop-Saver Adapter is the same one that is included with 2205, 2208 and 2212 series Scorpion Brushless motors. Machined from High-Quality Aluminum bar stock, it is designed to fit on a 3mm motor shaft, and comes packaged with 2 replacement rubber O-ri..