TOPS Knife- GRPR-01 -Grim Ripper Plain Fixed Blade Knife Push Dagger ( 3.75" Black Plain ) This extra heavy duty push dagger has the ability to dramatically penetrate and cut if the need be there. In the past years this very popular piece of equipment has been put on the vest of many a marine, infantrymen, lawmen, swat and other special ops personnel. Some individuals do prefer to use it strapped to their lower leg. This is a fine tool for urgent needs.