It became a digital book to be able to read text "Strike ringing course that understood absolutely" of the tennis GATT -lined with iPad and it appeared. The video image to say nothing of being able to read the text and the illustration with iPad was collected, and only iPad made inspection possible.
It is the best book for the person who wants to learn the point of interested person in the strike ringing of tennis (GATT -lined) and one and the GATT -lined that wants to start the GATT -lined in the future.
Attention! This text is written in Japanese.
Please see producer's website about detailed use.