This was purchased at a handmade event. Apparently, the seller is well-known in that circle, and although it was quite expensive, it's truly cool. It's easy to wear and very lightweight. It appears to be made of genuine leather, and the original brown leather remains on the lining. *This is how it was when purchased. (See photos) It has been stored in a dark place, so there is no damage, but I purchased it 2 or 3 years ago, so please refrain from purchasing if you are looking for perfection. The size is 27cm to 30cm in diameter. It has an adjuster, so I think it's free size. The vertical length is about 7cm. It looks great in any genre, such as cosplay, cyberpunk, and gothic lolita. If you have any questions about the size, etc., please feel free to ask. #gothiclolita #cosplay #leather #punk #cyberpunk #choker #necklace #genuineleather