Promo terbesar expert care sudah dimulai, diskon hingga Rp.100.000 sedang berlangsung di shopee, ada juga voucher diskon 100% alias gratis bagi bunda yang beruntung. Buruan cek di https://shope.ee/9UfEMMqqTg (id-29033)
it's time to change them. The yellowish stain is due to plastic degeneration especially if you sterlize them often
I always changed them once they turned yellow.