To better serve you, we offer 30 day replacement or money back warranty. Since we sell used items, and used items are foul-able, and since human error could be a factor, we appreciate you contacting us before opening a return case. We work on a replacement. If we do not have a replacement, we will issue a full refund. compatibility with application is buyer's responsibility. Please see pics as they are part of the description. Please ask questions prior to purchase.