The scraper tip is made of brass, so it is sturdy and durable, so you do not scratch glass. Scraper length: 16.5cm. Frost descends from the glass in one stroke. Hardness minerals are described with the aid of the Mohs scale (the higher, the harder mineral) - brass in this scale has a value of 5.0 - 5.5 while glass is 6.0 - 7.0.
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