For refilling the Pica VISOR permanent Longlife industrial marker, which provides waterproof markings on almost all material surfaces. It never dries out and maintains full performance from the first to the last stroke. It is highly economical, as one refill replaces up to five conventional ink or paint markers. This product is also highly environmentally friendly due to its economical consumption and the ability to refill in seconds. Avoid refill temperatures above 40°C.