The UBK is a set of 5 double pointed replacement blades for the utility knives.
Knife Blade Shapes Guide: 16 Blade Styles of Pocket Knives & Fixed
1919 Reserve Shift™ Exchange-Blade Folding Knife, Sheath Included
Creative Double-ended Dual-purpose Utility Knife For Hand Account
Green Legacy OTF Knife Spear Point, Double Edged Blade
SNAP-ON Double-Point Utility Knife Blades (10 Pk) / Model: UKBU10
RazorPro, Replaceable Blade Hunting Knife
New Klein Utility Knives Appear at Lowe's
GCAT1 International Catalog GCAT1 International Catalog Page 361
Knives - Products - SHIP-PAQ, Inc
Husky 2-in-1 Folding Utility Knife and Sporting Knife 99978 - The