This is a Power Balance silicone necklace. It is new, unused, and unopened. There are two necklaces, one black and one white. I purchased them on Rakuten a few years ago, but I ended up using them a few times. I am selling them because I no longer use them. 【Details】 Brand: Power Balance Product: Silicone Necklace Color: Black, White Material: Silicone The package is not included, only the necklaces themselves. Individual sales are possible. Discounts are available for bulk purchases. Please inquire. If you have any questions, please feel free to ask in the comments.