Shun's Limited Lifetime Warranty covers manufacturing defects in material and construction for the original owner of knives purchased through an authorized dealer such as Design & Grace, and it is non-transferable. Normal wear, rust, improper use or maintenance, accidents, loss, theft, and modified products are not covered; Shun's wood accessories have a 90-day warranty against original manufacturing defects, but not natural wear. Shun will sharpen your Shun cutlery free for as long as you own it, with a $15 shipping and processing fee in the US. Serrated knives can be honed by Shun's service but cannot be sharpened. See the Shun Limited Lifetime Warranty.