Instant purchase is welcome. This is a lucky timer that my eldest daughter, who worked as a nurse for four years, used for about a year to pass the medical school entrance exam. I would be grateful if someone could use it. I will wrap it in bubble wrap and ship it via "Yu-Packet Post." [Product] dretec Study Timer T-587 (with instruction manual) Operation Manual is available in English [Color] GN Green [Battery] 2 x AAA batteries (To prevent malfunction, the batteries will be removed and included.) [Warranty Period] 1 year (The warranty period has expired) The following is quoted from the Amazon description: [Convenient Timer Function] You can measure in 1/100th of a second, which is convenient for time trials such as hundred-cell calculations and games. Press the button on the top to start counting up, and you can measure time like a stopwatch. It is very useful for managing study time at home. [Notification with Light and Alarm] When the set time is reached, it will notify you with an alarm and light so you can concentrate on your studies. If you don't want to make noise, such as in a library, study room, or late-night study sessions, you can set it to "silent." OK for use in quiet places. [Size] Approximately 60mm wide x 80mm deep x 23mm high [Maximum Set Time] [Minutes] 199 minutes 59 seconds [Hours] 199 hours 59 minutes 59 seconds [Calendar Setting Range] 2018-2050