This is a Starbucks Solo Filter. It's a single-serving dripper that uses a stainless steel mesh to filter coffee, eliminating the need for paper filters. Used 4-5 times. I washed it with a soft sponge and stored it for a while. It's not new, but it's in good condition and can still be used comfortably. The box and instructions are not included. The condition is good, but please understand that it is a used item and may have minor scratches. [Functionality] A dripper that allows you to easily enjoy a single cup of freshly brewed coffee. It's economical and environmentally friendly because you can use it semi-permanently without paper filters.