Dr. Brown’s® Tuitbeker Ombouwpakket – Brede Hals

The straw is thick and sturdy enough for my toddler to chew on without it collapsing, and it fits perfectly onto the wide-neck bottles we already had. No leaks so far, even when she tosses it around, which is a win in our house.

We've had these sippy straw conversion kits for about a month now, and the wide-neck design fits perfectly with the bottles we already own, meaning zero extra cleanup since the parts go straight in the dishwasher. The straw itself is sturdy enough that my one-year-old hasn't been able to chew throug

Two of my kiddos are at different sippy stages, and this kit lets them use the same bottles, which saves me a ton of cabinet space. The straw is sturdy and my youngest picked it up in just a couple of days. Great that it fits the wide-neck bottles we already had.