Is this for collecting leaking milk? If so, you can consider Medela. I bought a pair for HK$88. Very useful, I use it when I bf (since the other side will leak). SOmtimes, I can collect 1 oz of milk after bf with one breast. At first, I store it for later use but since I know it's only foremilk( because it's very watery), I throw it away now.