lipoholder - v2

so uhh i thought of making some small changes that could make it easier and better to use than the last one, first off i added ridges on the sides for the rubber bands to not slide around. I also added protectors on 4 sides to make it more durable but also give it ability to stack on top of others, the last thing that i changed is the lenght and size of spaces inside the case, i made it taller / longer to make the batteries fit snuggly inside without sticking or falling out.