I received this as a birthday month benefit from Yofuku no Aoyama, but I already have my own water bottle, so I'm selling this one. It has a capacity of 420ml and is lightweight. I haven't used it myself, so I don't know how easy it is to use, but it does have the smell of a new plastic product... Due to the shipping cost (Yu-Packet Plus), I cannot lower the price any further. If there are no specific comments, I plan to include a wrapping bag as well.