Danco made their Eco series of knives to include the ECO-1 series grip and sheath. They're meticulously fashioned, using Oceanworks Guaranteed Ocean Bound Plastic, ingeniously repurposing plastic waste from landfills and the environment. The series includes a 4" Bait Knife, a 5" Bait/Fillet Knife, 6 and 7" Fillet Knives and a 9" Boning Knife. Each knife blade is constructed from German 4116 stainless steel, and all knives come in a ported locking sheath.