Here's a breakdown:
* Small, basic brushes: Closer to 50-100 grams
* Medium-sized brushes: Around 100-150 grams
* Large, detangling or paddle brushes: Up to 200 grams or slightly more
Factors affecting the mass:
* Material: Plastic is lighter than wood or metal.
* Size: Larger brushes obviously weigh more.
* Handle design: A thick, ergonomic handle adds weight.
* Brush type: Round brushes with a ceramic core may be heavier.
I hope this helps!