Choose from a wide and varied array of pens for balanced, technical uses in laboratory and manufacturing applications. Different models offer compatibility with ultra-wet, dry, or otherwise demanding environments. Ultra-fine models are ideal for producing precise lines for recording results in lab notebooks, filling in charts, drawing graphs, marking recording paper, producing diagrams, and for use with cardboard and plastic boxes. Laboratory markers are waterproof, smear-proof, odourless, and resistant to common chemicals.