GrindCase is more than a phone case. It’s a discreet, stylish case that includes a detachable grinder built into the back. The design looks sleek and minimalist at first glance, but inside it holds a complete cannabis toolkit. With GrindCase, you can grind, roll, and enjoy on the go  all without carrying bulky accessories. GrindCase is more than a phone case. It’s a discreet, stylish case that includes a detachable grinder built into the back.