The product photo (as of Aug.2012) provides that the brushes 4 are of equal length. Although the brush lengths are stated in the description (albeit to 1-2cm longer than actually), but I've read about unfocused or not measured it, how much is my bottle * g * Only when the supply I noticed that the brush set for my needs (bottles with min. 32cm height) is unsuitable. The longest brush does have 38cm (not 40), but the other three brushes are too short (32, 27,25cm). Pity the stem lengths 5cm not have more. So the brush set goes back unused.