Contigo Autoseal West Loop Stainless Steel Travel Mug with Easy Clean Lid, 16-Ounce, Stainless Steel With Tea Infuser And Cleaning Brushes Lid-lock prevents the AUTOSEAL button from accidentally being pushed while on-the-go Patented AUTOSEAL lid automatically seals between sips to prevent leaks and spills Double-wall vacuum-insulated stainless steel now keeps beverages hot for up to 5 hours or cold for up to 12 hours Stainless steel tea basket with fine etched holes for superior brewing - Fits into the Contigo AUTOSEAL West Loop Travel Mug 3-Piece brush set contains bottle brush, straw brush and lid brush - All brushes are top-rack dishwasher safe