We will laser engrave one metal surface of a knife (i.e. the front side of a blade is considered a single surface) you have included with the purchase of this service. Once purchased, you will receive an e-mail form with further instructions. Just update the quantity based on the number of surfaces and quantity of knives you would like to engrave. (i.e. a blade has two surfaces, a front and back, so if you would like both surfaces engraved, you would add this product twice) For low quantity orders (less than 10 knives), we engrave on any metal surface (bolsters, blades, pocket clip, and metal handles). For high quantity orders (10+ knives) we offer engraving on any material associated with our knives (restrictions may apply). The turnaround for most engraving orders is 24-72 hours.