These single serve formula packets are awesome. I don't like carrying around pre-made formula when I'm out and it's not very convenient to carry around powdered formula in a ziploc bag with a scoop. These packets are 4 ounches each, which is the perfect amount for us. When the baby's hungry I can just grab one, tear it open, and mix it with water in the bottle. No measuring or scoops needed. Super convenient and perfect for on-the-go.