The material is alluminum which wears through pretty quick
Mine survived a few low speed offs and a high speed lowside before getting ripped apart in a highside (granted there was extensive damage across the bike but still) so it wasn't too bad I'm just bummed that I don't have it anymore since I liked the sound so much. That said they can only take so much sliding as they are thin as well. Hopefully you never run into that issue
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I see you over there seeing me, do you see the me I think you see?