Permanent marker VISOR Execution: Modern refillable marker with ergonomic mechanical rotation system, with waterproof chalk for marking "MULTI-USE". One cartridge replaces up to five regular markers with ink or varnish. The cartridge never dries, marks at full capacity from the first to the last stroke. Practical carrying case with special clip for one-handed operation. Use: For marking and writing on almost all surfaces of materials – it does not matter whether they are dry or damp, smooth or rough, dusty or oil-stained, light or dark.