I don't know if the cases use the same material, but I had a 7130e and bought a black skin off of SeidioOnline. It was great and provided great protection, but I noticed after a while that where the loose end used to be, right above the send/end/convenience keys, since the skin would rub against the device, there were tons of nasty marks that I couldn't ever get off. Luckily I have a new curve