GEX Turtle Island Please let me know the desired quantity in the comments. Up to 10 pieces. Shipping is included in the purchase price, not free. 1 piece: ¥1,198 2 pieces: ¥1,498 3 pieces: ¥1,898 4 pieces: ¥2,298 5 pieces: ¥3,298 6 pieces: ¥3,698 7 pieces: ¥4,098 8 pieces: ¥4,498 9 pieces: ¥4,898 10 pieces: ¥5,298 Due to shipping costs, buying 4 or 10 pieces is the best deal. If you purchase 10 pieces, you will receive one extra as a bonus, for a total of 11. *Buying just one piece is not recommended as it's more expensive. These are used items, but there is no damage. They were purchased and used together, so the usage period is the same for all of them. Please refer to the outer box photo (photo 4) for product information.