Bugs 3 Battery Holder

My first attempt at making something actually came out OK!
The MJX Bugs3 quadcopter comes with a 2S battery, but uses a proprietary little case to house the battery. They close it with small screws which is all fine and dandy, but a pain in the butt if you want to change to a fully charged battery.
Originally was trying to make posts to close it with screws but they don't have enough strength. It works fine as a perfect sized sleeve to house your extra charged batteries for the Bugs 3. I used these: http://a.co/10DbLLo
Feel free to make it better.