3 inch (7 cm). Fine-edged, stainless steel blade cuts through the hardest of cheeses. Food safe. Lifetime Limited Warranty: This fine product is warranted to be free from defects in material and workmanship. Any piece found to be defective under normal use and care will be repaired or replaced at no charge with the same item or an item of equal of better value. Individual pieces should be returned postage prepaid to Barcraft, c/o Lifetime Brands, Inc. Customer Service Department, PO Box 9750, Trenton, NJ 08650-1750. You may have other rights, which vary from state to state. Made in China.