Tommee Tippee Breastlike Silicone Nipple 0-6m (2pcs.) Silicone nipples are specially designed to resemble the nipple and mimic the natural movements of the breast. Simulating the shape of the nipple, the safe and soft material ensures safe acceptance by your babies. They can be used to help transition from breast to bottle and pacifier, thanks to their innovative and award-winning design. Symmetrical orthodontic design. Oval shape, symmetrical and completely reversible, no wrong side. Free of BPA and phthalate compounds.