This means that the item is on-hand at our supplier and is ready to be shipped to us, then to you. Feel free to order these at any payment method.
However, there could be a possibility that a book could be out of stock despite being marked as on-hand from our supplier. At these occassions, you'll be notified via email if you wish to replace it or cancel it.
While books arrive in the country in less than two weeks via air, it could be held longer by Customs due to additional requirements for formal book importation. Please keep in mind this possible delay before ordering.