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Ships within 48 hours · Estimated delivery Nov 4 - Nov 9
+/-2% Accuracy
numbered 1 to 5 with + or - signs
a principle of physics that states that the force needed to extend or compress a spring by some distance is proportional to that distance
tape measure
Dependable Rich Resource for Classroom or home
Positive/Negative Number line Defibrillator +/-2% AccuracyDouble 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.
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