This was purchased a few years ago at Nagoya Takashimaya. It's a 10K long chain (approximately 10 centimeters) and is sparkly and lovely. The length is adjustable, which is great for changing up your look. The photos of the 10k mark and the COCOSHNIK mark are a bit blurry due to the focus, but these are genuine COCOSHNIK 10K earrings. I haven't used them recently and have been storing them in an accessories box. There is no special box or certificate.