Suitable Model: Propeller adapting mount specially designed for FPV Combo quadcopter. M-5 Hole: Suitable for M-5 mount hole propeller, have different flying experience than old setup. Repair: Repair parts, used for accidental damage replacement, making repairs more worry-free. Material: Made of aluminum alloy and steel shaft, to use. Easy to Install: Easy installation, convenient to use. color:Photo color Material:Metal Package Contents: 1 x Motor Propeller Base Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.