Does anyone know why my Stanley thermos has this second set of threads? I can't find any reason online or a larger cup that I could order for it. I love this
Stanley 24-fl oz Stainless Steel Insulated Cup in the Water Bottles & Mugs department at Lowes.com
Stanley Thermos Since 1913 Green 1.1 qt with Cup
How Stanley turned a 110-year-old water bottle into a $750 million business