Kritikson Security pens are best known for the check protector feature on the cap. The filler is interesting as well. Twisting the end knob pulls on the end of a curved lever and causes the far side to pivot into the barrel.
Kritikson Security pens are best known for the check protector feature on the cap. The filler is interesting as well. Twisting the end knob pulls on the end of a curved lever and causes the far side to pivot into the barrel.