Dr Brown's 좁은 목 교체 키트

Finally got this to replace the worn-out vent pieces, and the internal straw fits perfectly snug now — no more air bubbles in my baby's milk. Exactly what I needed to keep the bottles working like new without buying all new ones.

After a few months of washing the originals, the vent pieces had gone cloudy and a couple were cracking, so this kit was exactly what I needed. Everything fits my narrow neck bottles the same as the originals and the seal is tight with no leaks.

Lost one of the little vent inserts down the drain and thought I'd have to buy a whole new bottle set. This kit snapped right into my existing narrow neck bottles and the flow is exactly the same as before.