The marker, which never dries out Benefits Refillable high-tech marker with ergonomic twist mechanism.With water-soluble "MULTI-USE" marking crayon.Most economic: 1 lead substitutes up to 5 conventional ink or paint markers.Patented high-tech twist mechanism for rapid and convenient handling.Convenient quiver cap with clip for perfect one handed handling.Extremely long lasting and environment friendly due to high quality product technique and refill ability.Lead never dries out full performance at all times from the first to the very last line.Most environment-friendly due to low consumption and refill ability within seconds.Avoid lead temperature over 40°C.Lead size: 10mm diameter x 85mm longApplicationsExtremely insensitive and versatile for water-resistant marking on almost all surfaces, no matter if dry or wet, glossy or rough, dusty or oily, bright or dark. Product Specifications Brand Pica Model # 991/46 Tip Type Solid wax crayon 10mm Color Black Application For water resistant marking on almost all material surfaces, no matter if dry or wet, glossy or rough, dusty or oily, bright or dark Price Table Description VISOR Permanent Refills MULTI-USE Black Resistance To Temperature Leads avoid temperature over 40°C / 104°F Thickness 10mm Weight 0.016 lbs. Country of Origin GERMANY