GLOW pacifiers with a practical glow feature. Hold the pacifier in light for 5 sec. to activate the glow. The luminescent effect lasts for 8+ hours. A favorite for both moms and babies for over fourty years, BIB's natural rubber pacifiers allows your child to self-soothe by exercising their sucking instinct in the most natural way possible. Their classic appearance captures a look that's both timeless and elegant. *Colours can vary from pictures indicated Features Designed and manufactured in Denmark Nipple is made of natural rubber Nipple can expand when the baby uses the pacifier. The nipple is equipped with a valve that lets out air when the baby closes down on the nipple. This ventilation system causes the air from inside the nipple to be pushed out through the valve thereby flattening the nipple to shape naturally after the baby’s oral cavity. The valve is also the reason why water can be presented inside the nipple after cleaning and sterilization. If this is the case, simply just squeeze the nipple flat to press out the excess water.