Tube Checker (Black)

RT

Pen that can write on paper, plastic, glass and metal The ' Tube Checker' ' pen enables you to write on paper, plastic, glass and metal. When dried, the writings are waterproof. Written parts also become solvent proof against organic solvents such as ethanol, xylene and chloroform. Each set includes 5 tube checkers.
Features: These double ended pens are water and solvent proof. Useful in all department as they can write on glass, paper, plastic and metal. Once dry, the writing is waterproof and will not blur and will not be aaffected by organic solvent suchas Ethanol, Xylene and Chloroform. These pens have a fine point and a normal point for script variety.
How to use: Uncap the pen and start writing. The ink will be dried in 20 seconds or so. To avoid running, do not touch the ink with wet handsor dip in water before it is dried.