As Seen On Shark Tank With With Hall of Fame NFL career, Rob Gronkowski “Gronk� | Stainless Steel Outer And Inner | Double Wall Construction For Insulation Of Hot Or Cold Liquids | Screw On, Spill-Resistant Flip-Top Lid | Vacuum Insulated | Internal Measurement Markings | Easy Carry Handle | Removable Agitator Breaks Up Powders And Strains Out Ice | Flavor Your Beverage With Your Choice Of Fresh Fruit | Meets FDA Requirements | BPA Free | Hand Wash Recommended