Printed in two pieces - requires no raft support. Hinge pieces snap together nicely and SD cards fit into the slots very snugly. I had no fear of them just falling out when I printed one myself.

I did have trouble with curling on a few of the tests I printed. When that happened, the two sides didn't lay flat on each other. I added a second hook and spread them to the sides (originally I only had a single clasp in the center to hold it shut).