Heavy Duty Classic Butterfly Knife Thick 7 Hole Balisong - BlueHeavy Duty Classic Butterfly Knife 7 Hole Thick Balisong Marble Blue Splatter Plain. Featuring a 'beefed up' version of the classic Weehawk riveted design this Budget Balisong is not quite as FAT as our Knuckle Banger, but is still quite Hefty. You will find yourself saying 'Oh it hurts so good' when you feel the weight of this big, thick, HEAVY swinger. Blade Material: Sharp Stainless Steel (basic steel) Blade Thickness: 3mm Handle Material: Steel, 1