Hardshell Backpack Case for Hubsan H501S X4 FPV Quadcopter Carrying Black Customized foam with interior strap keeps your H501s drone secure from crash Hardshell with classic zipper enhanced security,easy to open and close Soft adjustbale shoulder strap makes it easy and comfort to carry Lightweight yet extremely durable polycarbonate material Convenient to carry on your H501S drone in outdoor travelling or visiting friends