This is a groundbreaking item with an ergonomic design that supports comfortable playing and allows for personalized settings. It has just been released and is attracting worldwide attention, making it difficult to find in Japan due to limited stock. I purchased it a few months ago and used it for about a week. There are no stains, but there are some minor scratches from carrying it around, which are only visible upon close inspection. These do not affect its use at all. The box and all accessories are included. The retail price is high, but I am offering it at a reduced price, so I highly recommend it to anyone who wants to try it. It's also highly recommended for those looking for a shoulder rest that perfectly suits them.