Thank you for viewing. - Brand: LARRY SMITH - Model Number: EFRG-0023 - Material: K18 Silver - Accessories: Box, Certificate This is a LARRY SMITH K18 Eagle Head Kazekiri Feather Ring. The box and guarantee are all included. I purchased this from the authorized dealer YELLOW TAIL in 2017, and it is undoubtedly authentic. The size is size 12, but since the model number is 0023, it can be adjusted to some extent, both larger and smaller. Also, due to the rising price of gold, LARRY SMITH items may also increase in price. How about taking this opportunity before the price goes up? Please feel free to ask if you have any questions. Price negotiations are also welcome. Thank you.