Excel Blades K55 Pocket Utility, Folding Box Cutter Knife Lightweight box cutter utility Knife with lock back design, and a texture grip handle for increased stability and performance One handed opening operation and quick blade changing mechanism allows you to quickly and reliably change out blades Folding design fits perfectly into your pocket or easily clips to your belt Comes with six (6) standard heavy duty two notch utility blade, with blade safety guard - handle fits most standard utility blades including Stanley Built for cutting materials such as wood and sheetrock - for construction, remodeling, and carpentry