Sakura Identi-pen
This pen will do the job on almost every surface! The Identipen is two permanent sharp point marking pens in one - a tough fiber fine point on one end and an extra-fine plastic tip on the other. Use this pen on non-porous surfaces as well as paper products.
Applications:
Metal, Wood, Glass -Test Tubes - CD Roms
Fabric (Heat set recommended) - Tools
Photographs - Plastic - Autographs
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