★ Ships Immediately ★ Brand New Latest Edition Jack 21 Standard Edition Mathematics Jack21 With Answers and Explanations Will be shipped in a waterproof package and a cardboard envelope. ////////////////////////////////////////////////////////////////////////// 《 To Buyers 》 ① For those who wish for express shipping or are in a hurry, please select Japan Post's Letter Pack (delivery the next day to the day after the next). Delivery is possible the next day to the day after the next, even for remote areas such as Hokkaido and Okinawa. Before pressing the "Proceed to Purchase" button, please let me know in the comment section "Letter Pack ○○○ desired" and I will adjust the total price accordingly. Letter Pack Light (Plus 270 yen, delivered to the mailbox) Letter Pack Plus (Plus 460 yen, handed over in person) Price changes cannot be made after pressing the "Proceed to Purchase" button, so express shipping will not be available. ② Immediate shipping... has a time range. In the case of nearby prefectures, even if shipped at 6 PM today, or at 3 PM tomorrow (21 hours later), the delivery date and time will be the same. Please rest assured that we will make a judgment and take action to deliver as quickly as possible. Except when purchasing using method ①, please refrain from messages that urge shipping. ③ We do not accept any price negotiations, whether purchasing one item or multiple items. We will not respond to comments asking for a price reduction. Please understand the above three points.