+ Brush tip comes in three sizes: small, medium and large
+ Cap is transparent so you can see the brush tip inside
+ 9ml model holds a decent amount of water
+ Nice sharp point
- 4ml model is too short, awkward to hold, like a short pencil
- 4ml model does not hold a lot of water.
- No breather holes in the ferrule. Pigment will get pulled back into the ink reservoir