Unique in coloring, these tortoiseshell steak knives will add a great design feature to your table. These knives provide you with the best of both worlds of quality and beauty. Each knife in this set has a 2.5mm gauge, and is put through 25 production processes, is rust resistant, and is dishwasher safe. ABS handles Stainless Steel Sharpened Blades Stainless steel caps Certificate of Authenticity Care Instructions: We recommend washing your cutlery gently by hand under running hot water and to wipe it off immediately after. However, most of products, apart from those with natural wood handles, are dish-washer safe.