Bubble levels consist of a slightly curved, liquid-filled, horizontal tube of glass or other resistant material with a single air bubble (hence the name "bubble level"), air levelย oย bubble level).
The tube is housed in a body or frame made of wood, metal, aluminium or plastic.
Within the latter type, we find the versatile ABS plastic models.
Two or more markings or, in the case of more sophisticated models, a graduated scale or an electronic readout device are provided.
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JOAN MENDES (verified owner) -
It is just as I saw it on the website