BW&reg; Glass Fiber Flight Controller Anti-vibration Damping Plate Shock Absorber Set for APM2.5/2.6 /KK /MWC Suit for various kinds of flight controller, like APM 2.5/2.6, KK, MWC Material: Glass fiber Size: 10 x 8 x 1cm / 3.9 x 3.1 x 0.4in Weight: 25g