Here is a Solo Stove NIB that I bought years ago to bring on a camping trip which never materialized. This unit is 4"x4" so definitely for a single user. It is not listed on the Solo Stove site. The instructions are on the side of the box. The paperwork that I just looked at and photographed with this burner is for a lighter which is not included in the box. Please review the pics as part of the description.