Chuchu Baby Manual Breast Pump I purchased this on Mercari, but unlike with my first child, I don't seem to need to pump. Therefore, I'm offering it to someone who can use it, as it remains unopened. I haven't used it at all since purchasing it, as it's still sealed. (The previous owner used it a few times.) However, I realized after purchasing it that the silicone valve was missing. I'm not sure if it can be used without it... It seems the silicone valve can be purchased for a few hundred yen. Nipple care items are also not included, but the previous user said they didn't have any problems without them. With my first child, I used a commonly used handle-squeeze type of breast pump, but I developed tenosynovitis. That's why I bought this type for my second child, hoping to avoid that issue. (Although, I ended up not using it.)