I purchased this through online shopping, but when I had a bicycle shop look at it, it turned out the size wasn't compatible with my bicycle, so I couldn't attach it. I only opened the instruction manual, so I haven't touched the product at all, and it's still in the condition it was delivered in the cardboard box. It's a shell-shaped cover that can be used not only as a rain cover but also as a sunshade. It also has a lace curtain, which seems to prevent insects, so it's something I really wanted to use. I will process sales in order of purchase, not in order of messages received, so I cannot hold items. Thank you for your understanding. I am also listing this on Jimoty.