• hellobaby best baby monitor - Hellobaby Tray balance scale, household physics laboratory rack plate, high precision mechanical balance scale, teaching aids, elementary school student experiment
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Hellobaby Tray balance scale, household physics laboratory rack plate, high precision mechanical balance scale, teaching aids, elementary school student experiment

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

$99.99 USD
$109.99 USD $99.99 USD
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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.
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