Ergodyne Arsenal 5567 Utility Knife Holder Utility Knife Holder: Keep your sharpest tool in the safest spot and always have quick access. 1680D Ballistic Polyester Fits most utility knife designs Stainless steel belt clip Two exterior pen/marker slots Utility Knife Holder: Keep your sharpest tool in the safest spot and always have quick access. 1680D Ballistic Polyester Fits most utility knife designs Stainless steel belt clip Two exterior pen/marker slots