Pica VISOR Permanent (refillable) is an innovative, wax based marker for universal use. 4 extra tips in a smart pack for refilling the Pica VISOR Permanent Longlife marker pen for industrial use. For permanent marking of virtually all materials (whether dry/wet, smooth/rough, dusty/oily, dark/light). A marker you can trust that will not dry out. Economical: 1 tip lasts as long as up to 5 conventional markers (ink or colour). Very environmentally friendly and practical thanks to the quick tip replacement.