Even the most reliable blade wears out eventually, and this blade can be easily replaced for FLISSA Cordless Electric Fillet Knife Blade is made of durable high carbon stainless steel, heat treated and surface polished, giving you a smooth and clean cutting experience, and also removable for easy cleaning 8" flexible blade is suitable for filleting medium to large fish, it's flexibility allows you to make precise cuts, particularly when working around bones and skinning fillets Well-suited for Salmon, Trout, Snapper, Tilapia, Walleye, Catfish, Cod... especially those with softer flesh or more delicate bones Swap out the old blade for a replacement, and you'll be ready to fillet fish with ease again! FLISSA Replacement 8" Flex Blade for Electric Fillet Knife in Polished Stainless Steel, Premium Razor Sharp Blade with Reciprocating Construction for Fishing, Filleting, and Cutting