It was worth buying. I washed a glass bottle as a test, which had hardened dirt on the bottom and sides of the entire bottle. The design and length of the brush handle is really good. There are also enough bristles on the head to easily clean the bottom. I just bought the product so I can't say anything yet about how long it will last in use. Spinning idea: it would be great if the brush part was... Read more
Verified buyerSoile S.

