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Ships within 48 hours · Estimated delivery Sep 25 - Sep 30
numbered 1 to 5 with + or - signs
+/-2% Accuracy
in order to guarantee the highest precision and reliability
16mm Diameter
The product is made of eco-friendly low toxicity and safe high quality PVC
Positive/Negative Number line Defibrillator numbered 1 to 5 withDouble sided, write on, wipe off number line. Shows a horizontal line on one side and vertical line on the reverse. Ranges from 10 to +10. Premium Quality: This item is made of high quality, heavy duty and durable materials. Designed for use in classrooms, household and educational settings. If you need custom order with different sizes design, please contact us. Safely Packaged to avoid being damaged during transportation.
