Formula doesn’t stay good for long once it’s mixed, but making formula on the spot can be messy with all of the measuring cups and cans that can pop open and spill. B.Box has solved this problem with an absolutely ingenious invention. Their innovative bottle dispenser stores a pre-measured serving of formula in the bottom of the bottle while you fill the top with sterilized water. When your baby is ready to eat, there is no need to deal with cans and measuring cups. Just push the plunder to dump the formula into the water and shake. Baby’s meal is ready on the go and you only needed one hand to mix the formula. These bottles are phthalate, PVC and BPA free.