Available for immediate purchase. Regular price: 2500 yen + shipping 455 yen (Yu-packet Plus) + 10% sales commission 328 yen. If you're okay with changing to Yu-packet Post, I can discount it to 3016 yen (regular price 2500 yen + shipping 215 yen + 10% sales commission 301 yen). (Please note that the thickness will be slightly compressed when placed in the post, so only those who are okay with this should consider this option.)