This is a lovely black lace dress. The back has a V-shape opening. For someone who is 164cm tall, the length will be around the knees. I wore it twice and had it dry cleaned. After the last wear, I had it dry cleaned a third time and then stored it in the closet. I didn't find any issues like fraying. Size: 4 (Feels like a Japanese size 9 when worn.) Retail Price: I don't remember, but I bought it at a Japanese boutique. I will fold it and send it in an A4-size envelope. Please feel free to ask if you would like to know the measurements. (Seller's code: M N)