Kershaw Knockout A/O Folding Knife 3.5 Damascus Steel Blade Aluminum Handle. 3.5 Damascus steel blade. Speed Safe assisted opening mechanism. Please see pictures. All used items, as well as items with multiple quantities available may have minor imperfections are not visible in the photos or in the description. These imperfections include, but are not limited to, small scratches, minor rips, dimples, edge wear, or just wear from every day use. We would be more than happy to accommodate any requests. Are you looking for something similar? See our other items! Send us a message.