Small in size, that's why it's cheap, needs replacement quickly, but it's effective.

They work quite well in absorbing moisture from the closets. I deduct 1 star because they are smaller in size compared to other similar ones that, although much larger in size, also indicate absorption of 500ml (grams are not mentioned in any store here), and also deduct 1 more star because the hanger base does not properly attach to all pieces, resulting in needing to secure it with adhesive tape (I'm not sure if it was a problem with the batch I received).