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Hellobaby Tray balance scale, household physics laboratory rack plate, high precision mechanical balance scale, teaching aids, elementary school student experiment

Regular price $99.99
Regular price $109.99 Sale price $99.99
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1  Made of environmentally friendly materials, resistant to scientific corrosion, anti-static, heat-resistant and cold-resistant, not prone to aging.

2 Sensitive response, a slight deviation means the pointer does not return to zero on the scale.