Bangda 16 Ounce Vacuum Insulated 18/8 Stainless Steel Tea Mug Thermal Flask, Blue Made of double wall 18/8 stainless steel, with latest vacuum insulated technology ensure superior insulation for hot or cold liquids Removable tea strainer is perfect for making a hot cup of tea Fully-automatic spot spray painting technology, effectively preventing the coat from damage Non-slip bottom is abrasion-resistant; Fits most car cup holders Lightweight and portable design, easy carry and storage