The bottle that worked in the hospital won't necessarily work at 3 months. And that's completely normal. As your baby grows past the newborn stage, their sucking strength increases, their feeding pace changes, and the slow-flow nipple that worked perfectly in the beginning can start causing frustration, prolonged feeding sessions, and fussiness. The problem is that most parents don't realize flow rate is the issue, they just know feeding isn't working like it used to. The Tiny Trials Stage 2 Flow Bottle Discovery Box was designed specifically for this transition moment. Whether you're a breastfeeding mom introducing a bottle for the first time, a combo feeding family looking for a bottle your baby will actually accept, or a formula-feeding parent whose baby has outgrown their newborn bottles, this box meets you exactly where you are. What's inside: Shimi Baby Bottle: The bottle designed specifically for formula feeding. Features a built-in refillable formula pod, medium flow 2-hole nipple, anti-colic system, and ultra-durable Tritan construction. Mess-free, travel-friendly, and dishwasher safe. MAM Easy Start Anti-Colic Bottle (9oz): Clinically proven to reduce colic in 80% of babies. Features a SkinSoft silicone nipple accepted by 94% of babies, dual vented base, self-sterilizing in 3 minutes, and BPA/BPS-free materials. Ideal for breastfed babies. Lansinoh NaturalWave Anti-Colic Bottle: Built on 50+ years of breastfeeding research. The NaturalWave nipple is clinically proven to reduce nipple confusion, supports baby-led feeding rhythm, and features an Air Ventilation System to minimize gas and colic. 3-piece easy-clean design. Why parents love Tiny Trials: Instead of committing to a full multipack of one bottle and discovering your baby hates it, our discovery box lets you trial multiple trusted options in one purchase. Find what works — then buy more of it.