As its name suggests, a grinder is a piece of equipment used to grind up cannabis into a granule so that it can be vaped or smoked.

Grinders are a tool used by cannabis consumers to break down, or grind up, dried cannabis flowers so that they can be inhaled through smoking or vaping. Usually made from either plastic or metal, grinders have a set of interlocking teeth that shred cannabis apart when they are twisted in opposing directions. 

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