This is a very interesting device: a V60 type filter typical of Hario, as well as a glass coffee mug with a sleek silicone ring. This set allows both the brewing and serving of brewed coffee. It is very convenient for cleaning as all parts are easy to disassemble. The glassware and plastic filter holder are easy to wash in the dishwasher. The plastic holder is compatible with Hario V60-02 filters included in the set (10 pieces).