364163 Flight controller anti-vibration board for APM Using fiberglass material， light weight， and durable. Applicable to APM and various suitable dimensions flight controller， damping effect is obvious， make aircraft flying more stable. Material: glass fiber Color: black Anti-vibration board size: 100 x 70mm， 91 x 61mm 2 x Anti-vibration board 4 x Anti-vibration ball 2 x 3m adhesive