The straws are made of food grade stainless steel, no metal aftertaste, reusable and environmentally friendly. One set of steel straws can be used for years replacing plastic straws. The set includes a cleaning brush which is long enough to wash the whole straw and a collapsible straw. Each straw has a portable case that you can carry it with you wherever you go. Reusable straws are easy to store and carry for outdoor picnics, camping, hiking, travelling, home and office use.