⚫︎ This is a manual breast pump I purchased three years ago, which came with the set but I never used. ※ The baby bottle was taken out of its packaging and sterilized so it's ready to use, but it has not been used. ※ The lid of the current third-generation baby bottle cannot be used with this, but the nipples are compatible. ◎ The nipple is size SS (newborn). Thank you for looking.