XAERO 1 Pair RC Airplane Glider Folding Propeller  Old Version 6x3/6x4/7x3/7.5x4/8x6/9x5/10x6/10x8/11x6/11x8/14x8/15x13 6-15 Inches Props

Package Included:1 pair

For the great amount of propellers with varied types of different purposes, users should fly with them follow the instruction below for safety:
1.Please run your propeller with proper power system, and please do some necessary adjustment with test of static/ dynamic balance seriously, or you will easily have it damaged;
2.When the power system is working, please make sure that there is no one standing in front or on either side of it ( or its intake, if it is an electric ducted fan power system), preventing it from flying off unexpectedly and causing danger;
3.If there are some cracks or any structural damages on the propeller, please displace another one as soon as possible to prevent it from flying off into pieces and causing danger；
4.Before flying, please make sure the propeller is fixed well through the motor shaft and the two of which are in the same axis;
5. Please make sure the runway is clean, because such things like branches and little stones and easily cause danger and damage to people all around and the plane itself.
* This guide can also be applicable in the term of “Ducted Fan Power Units”.