The modern K3 Biosafe biros from Schneider is an environmentally friendly and high-performance writing instrument in line width M for professional use. The white barrel of this retractable biros is made from up to 62% bio-based plastic. A sturdy metal clip is attached to the end of the barrel for fastening to jacket or shirt pockets. A coloured ring at the end of the barrel is in the respective writing colour so that you can recognise it at a glance. The high-yield large-capacity refill writes with its wear-resistant stainless steel tip in line width M. The K3 Biosafe writes document-proof in accordance with ISO 12757-2. The colour is therefore smudge-proof, lightfast, waterproof and resistant to solvents and chemicals.