Collect, store and feed colostrum from the same container.Made of 100% medical grade silicone.Soft squeezable silicone has a vacuum effect to collect droplets.Nib suctions colostrum off the nipple, can also be removed to express directly into the collector.Portable, leakproof and reusable.Heat/freeze resistant and includes clear measurements.Non-toxic and safe for newborns.BPA, PVC and phthalate-free.