Staedtler Lumocolor Permanent Marker Bullet Tip Red x 10's pack scientific calculators 1 2" and 3 4" wide industrial strength QTMHOW1723 1 2" and 3 4" wide industrial strength labels in a variety of materials and colors PLUS print directly on heat shrink tubes Drawing And Technical Drawing low odour • DRY SAFE ink – can be left uncapped for days without drying up (Test ISO 554) • Locked tip • PP barrel and cap guarantee long service life • Xylene and toluene free ink • Airplane safe – automatic pressure equalisation prevents marker from leaking onboard aircraft • Stand up STAEDTLER wallet converts to convenient desk stand • Refill pots available to extend the life of your marker The ink in these markers are smudge proof