This container was so useful for feeding Chloe on the go! I was able to comfortably fit four scoops of formula (probably with room for one more scoop) in each container; Chloe is drinking 4oz at a time right now so each little container holds two bottles’ worth. I bought two sets to extend my stack for our recent trip and I used one container to keep my formula whisks for helping to blend up each bottle on the go. The stack also fit so easily into my travel bag! I’ve also linked my favorite baby bottles, travel containers (you can bring just the silicone insert pieces and use just one shell while travelling!), and travel bottle cleaning / drying rack. LTKTravel LTKBaby