Size is approx. 6.8x23cm – Material: Inner bottle/mouthpiece : stainless steel Body:stainless steel (acrylic resin coating) Cap: saturated polyester resin (PET resin) Lid:polypropylene Rubber seal: silicone Bottom plate:elastomer resin- Capacity: 470ml – Cold insulation effect: 8 degrees or less (6 hours)- Dishwasher cannot be used, only for cold storage- It includes Name tag