
Organic Chemistry Molecular Model Sets, Permanent Neodymium Rare Earth Magnets, Magnifying Glasses, Test Strips, Lab Supplies, Tuning Forks

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Surplus Linen Testers
| All these linen testers have longer than normal focal lengths. They will work fine if you
are near sighted & take off your glasses or are younger than 18 (your eyes can adjust). Otherwise
you will have raise them 5-10mm (1/4") off the table to compensate for the long focal length.
The 25mm (1") plastic linen tester also has incorrect ruler markings in addition to a long focal length.
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Linen Testers
Organic Chemistry Molecular Model Sets, Permanent Neodymium Rare Earth Magnets, Magnifying Glasses, Test Strips, Lab Supplies, Tuning Forks
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Indigo® Instruments.
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