In the rare event that your product is delivered damaged/defective, please let us know so we can process a replacement immediately at no additional cost / refund. Please do not attempt to install a damaged part.There are a few important things to keep in mind: Ⅰ.you must retain the damaged item, packaging, and all contents until the claim is resolved.Ⅱ.Picutre submit  1.Complete express label picture on the package  2.Outer box damage picture and full view of the package box  3.Broken product picture in detail and also in full view