Color-coded Spring Scales

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Color coded spring scales can be used for both force and mass measurements. Zero adjustment and clear tube allows students to see the action of the spring. Calibrated in both Newto ns and grams. Set includes one each of 250g, 50g, 1kg, 2kg, 3kg, and 5kg. WARNING! Choking hazard. Contains small parts. Not for children under 3 years.' Show more