Feature 1304 Stainless Steel: Automatic magnetic stirring coffee mug's interior is made of premium 304 stainless steel, high temperature resistant, wear resistant and durable. 2Easy to Operate: Self stirring coffee mug is easy to control, press the switch to automatically stir the liquid in the cup, quick stirring and automatic cooling, safer to use. 3Widely Used: Self stirring mug can stir and cool coffee, milk, juice, medication, protein powder, etc. 4Applicable People: Automatic magnetic stirring coffee mug is suitable for men, women, elderly, children and students. 5Fine Craftsmanship: Automatic magnetic stirring coffee mug has a beautiful appearance, stylish contrast design, fine polished cup mouth, comfortable handle.SpecificationItem Type:SelfStirringMugMaterial: ABS, 304 Stainless SteelWeight: Approx. 350g/12.3ozSize: Approx. 13.5x9cm / 5.3x3.5in Power Supply: 2 x AAA Batteries (Shipped Without Batteries) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x SelfStirringMug1 x LidNotePlease allow some error in manual measurement.