These are school uniform buttons for junior high school students. This is a set of 5 chest buttons. (Change buttons that attach from the back are not included.) Replacing the back buttons is easy enough for children to do themselves. The second photo is taken from the side. As you can see, they are thin. Size: Approximately 2.1cm in diameter. These are commonly called "glass buttons." While they are not actually glass, they are processed with epoxy resin. Rather than pure white, they appear slightly off-white. The lettering, cherry blossoms, and trim are gold. As you can see in the photos, the back is also gold. The material is brass (made of copper). We will ship via Yu-Packet Post Mini, and will provide a tracking number after shipping. Delivery will be to your mailbox, not by hand. Items for which payment is confirmed by 12:00 PM will be shipped the same day. (There are generally no days we cannot ship, but in the unlikely event of an urgent matter preventing shipment, we will ship the next day.) Depending on your location, delivery to your mailbox will typically occur 1-3 days after shipping. For more details, please check the estimated arrival time from Osaka for Yu-Packet Post Mini online. *These are new items. *This listing includes free shipping. Therefore, please refrain from requesting discounts. (However, if you purchase multiple items at once and they can be shipped together, we will offer a discount equivalent to the shipping cost, so please consult us before bidding.) No prior purchase application is necessary, so immediate purchase is welcome.