Headphone Holder with Case

I printed the headphone holder https://www.thingiverse.com/thing:366926 but it unrolled itself pretty easily so i wanted to print a case to prevent unrolling if thrown into a bagpack.

Because my earphones didnt fit flush into the original holder i had to make a bigger groove and also increase the hight of the design to fit the earphones into the middle.

The Case is just a rectangular prism printed in vase mode. Maybe you have to make the case a bit smaller to fit perfectly, depending on yo