Low Profile Landing Gear: Blade 400 This is the Micro Heli Low Profile Landing Gear for the Blade 400 and 400 3D Helicopters.Includes:Two Micro Heli Aluminum Skids, two Plastic Landing Gears, five Plastic Skid End Plugs, and HardwareRequires:Glue the 4 landing skids plugs into the skid endsInstallation onto helicopter