5 Pack Alcohol Resistant Laboratory Markers, Black Dual Head Permanent Freezer Pens with 0.5mm Fine Point and 1.0mm Makers Tip, Designed for Industrial, Lab and Hospital Use

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Alcohol Resistant: our 75% alcohol resistant markers pens are designed for laboratories; They have high resistance to most solvents and can maintain clear reading and writing in various environments; Please note that you need to wait for the ink to dry before using
Innovative Double Ended Pen: our pen is a double ended pen with two thick and thin nibs, which can satisfy different writing volumes; It provides professionals with marking and identifying labels for any items to improve productivity
High Tolerance: our pen still displays clear handwriting even in low temperature environments of -80℃/-112℉; Withstands 75% ethanol, DMSO, liquid nitrogen water, bleach, detergents, ovens, autoclaves and incubators
High Applicability: this pen can be written on various laboratory container carriers, including glass measuring cups, plastic centrifuge tubes, freezing tubes, petri dishes, and storage bags; It provides you with long term and stable markings
Practical Set: our set has a total of 5 pens in 3 different colors, namely 3 black, 1 red, 1 blue, which can help you identify and compare different items; Sufficient quantity to provide you with a long time usage