hi, I'm sorry. I didn't think to list that in description. It is like silicon, rubber like material. A little firm yet flexible and the corners have grey tabs that are interchangeable. I know they come in a variety of colors at the Verizon store so you may be able to find them online too :)
I'm not positive on that hon, it just says it will fit the S4. It measures 5.5" tall by just under 3" wide (actually 2 7/8" to be exact) lol I hope this helps. It has one hole up top on back for camera, one on bottom left back for speaker and charger/headphone holes on the bottom. Then theres 3 holes on the top that I'm not sure what they're for haha. I'll try to add those pics to help you :)