Four-cell design - Four separate sections can be stacked in any order, each compartment is a separate storage space. Designed with a covered funnel-style spout. Healthy material - Food grade Premium quality BPA free PP material, Nontoxic. Capacity - 4 layers design, you can put quantity of milk powder to be taken at one time in each layer box, you can carry 4 times of milk powder for baby outdoor need, very convenient and practical. Multi-purpose - It also can be used as Snack Cups and Baby foods container, perfect for storing oatmeal, cornflour, nuts, candy, fruit and more food. Easily clean & carry - Portable soft PU ring, easy take, perfect for travel or on the way. Narrow footprint means it can be stored easily in buggy bags and bottle and coffee cup/drink holders.