This item is the kettle A5 notebook ， also known as paper cups， only A5 size ， 420ML， sealed portable， like a book of glass ， can easily be placed inside the bag and do not take place . Feel ， texture quality ， absolutely beyond your imagination . Rounded edges designed to use more fitting hand-type， slender bottle mouth water more convenient.1.100% Brand New Notebook water bottle2.Unique in Design3.4 color available:Brown，clear，pink，black 4.Capacity:About 420ML