This is a set of the Hario Switch 02 size and the genuine drip assist. This is the same combination used by Bayu Prawiro, the Indonesian representative who won second place at the World Brewers Cup 2025 Jakarta competition. The frequency of use is quite low, but please refrain from purchasing if you are sensitive to the condition, as it has been stored by a private individual. I will pack it with bubble wrap and ship it.