Dualsky spinner assembly to suit folding propellors on EP gliders. Designed in the Czech Republic, this light but very strong assembly is suitable for most electric powered gliders including F5J, eRES and F5K. The tapered collet clamping cone is easy to fit and very secure. The angled, z style propeller hub allows for a very streamlined effect when the blades (we recommend Aeronaut CAM or CAM Z) fold back. Available in a number of different diameters and to suit most motor shaft sizes. It is supplied with a rubber ring of the appropriate diameter to assist the blades to fold back when the motor stops.