This is a Chums stainless steel mug that I won in a Sixteen Tea campaign. It has been stored at home unused, but there is a small scratch-like mark on the inside of the cup (see photo 5). As this is a personal inspection, there is a possibility of oversight. Please ask any questions in the comment section beforehand and purchase only after you are satisfied. Please refrain from purchasing if you are overly concerned about details. Uses/Purpose: Camping, Picnics Material: Stainless steel