Here's a retainer case that is pure and simple. We chose a mat finish case that won't show scratches and the smooth outside surface makes it slip in and out of your pocket with ease. It has air holes at the hinge and pops open easily with one hand. Also includes an I.D. sticker. Inside measures 2 1/8" x 2 3/4" x 1" deep which accomodates at least 98% of our retainers. Be sure to measure yours before purchasing. Comes in ten colors. Red, neon yellow, black, turquoise, translucent, neon orange, neon pink, blue, purple, and green.