Vktech&reg; S500 500mm FPV Glass Fiber Four Axis Quadcopter Frame for Gopro Hero 3 3+ This quadcopter frame kit is perfectly compatible with Gopro Hero 3/Hero 3+ gimbal Made from glass fiber which is durable and light Lightweight design ensures that it will hardly affect video shooting Wheel base: 500mm Suggest motor: 2212, kv980, 2216, kv880, kv900, 3108, 900kv