Come and see our amazing products. Designed with sealed rubber band on the lid to prevent liquid spilling out and improve the efficiency of warming; Anti-slip rubber base, keep the cup stable.CONSTANT TEMPERATURE TECHNOLOGY-Auto Electronic Heated Travel Mug, 450ml 15.2fl oz Capacity Enough For Personal Use, Intend To Heat And Keep Your Hot Water, Coffee, Milk, Tea Or Other Beverages Warm At Right Temperature Around 65 Degrees. Pls confirm with us about the packing info, stock color and exact production time before placing your order.