Bundle - 3 Items: Opinel No 6 Carbon Steel Folding Knife, Opinel No 7 Carbon Steel Folding Knife, and Opinel No 8 Carbon Steel Folding Knife Bundle - 3 Items: Opinel No 6 Carbon Steel Folding Knife, Opinel No 7 Carbon Steel Folding Knife, and Opinel No 8 Carbon Steel Folding Knife The Opinel No 6 Folding Knife features a carbon steel blade with a Beech wood handle. The blade is 2 7/8" long and is 6 1/2" long when opened and weighs 1.2 ounces. The Opinel No 7 Folding Knife features a carbon steel blade with a Beech wood handle. The blade is 3 3/16" long and is 7 1/16" long when opened and weighs 1.3 ounces. The Opinel No 8 Folding Knife features a carbon steel blade with a Beech wood handle. The blade is 3 1/4" long and is 7 1/2" long when opened and weighs 1.6 ounces. Care of your carbon steel knife: The manufacturer recommends to avoid leaving your carbon steel knives in damp environments for too long. Place a small amount of food grade mineral oil on all metal parts regularly and to dry the blade with a dry cloth after each use.