Four (4) extra large holes in the shield let baby's skin breathe, so skin stays drier while soothing; 84% of moms agree!*, Long lasting glow in the dark, BPA-Free, BPS-Free, Phthalate-Free and PVC-Free, Comfortable soft silicone nipple; 98% nipple acceptance**, Comes with a sterilizer / carrying case; use it to sterilize the pacifiers with water in the microwave.