4 months “control flow” anti-colics teats, with drilling cross for the 330 ml capacity.
Advices: sterilization in a sterilizer is recommended for a perfect hygiene to prevent gastroenteritis. Cleaning with rubber or silicone brushes is recommended.
Tricks: to keep elasticity teats, sterilize them with steam, they will last longer. Prolonged soaking in some chemical products may give an unpleasant taste and opacify the material.