Bubba Blade 9" E-Flex, Electric Fillet Knife Replacement Blade Bubba Blade 9" E-Flex, Electric Fillet Knife Replacement Blade This 9" E-FLEX Blade fits both our 110V Electric Fillet Knife and Cordless Lithium Ion Electric Fillet Knife. It's made of a High Carbon Stainless Steel and chemically bonded with a... $21.99 $19.99 Add to Cart Compare