Material:Made of high quality PP and food-grade silicone material, safe and eco-friendly, BPA free, heat and corrosion resistance Size: Approx 18*8cm;Each layer can hold about 50-60 g. Each pack of formula dispenser containers with 3-Layer;3-Layer activities can hold about 150-180 g Design: This milk powder boxes can be used as a single box or as a combination of multiple boxes,it can store powdered milk and other complementary foods Advantage: Easy to carry,can be put in bag for transport;Large capacity;All 3 containers come with individual twist-lock secure lids, Making on-the-go feeding easier, can be freely combined Application: Can be used as snack cups and baby foods container, perfect for storing oatmeal cornflour and nuts; Also available as a pacifier, nipple protection and bottle nipple and can be used, baby food, solid baby food and accessories. Adults can also be used as a container for protein powder