Features:Made of carbon fiber.Easy installation.The actual flight time is about 10-11 minutes (stock battery * 2) and the flight performance is still good.Note:Need an XT60 parallel connector(Y connector).Please replace the original 8 screws with the eight M3x8 screws in the package.Battery straps' color will be at random.Specifications:Material: Carbon fiberTotal weight: 42g / 1.5ozPackage List:2 * Battery Mounts2 * Battery Straps8 * Screws