The Philips Avent Ultra Air pacifier for babies 6-18 months has a long lasting glow, so it's easy to find in the dark. It's designed with a lightweight, breathable shield for baby's sensitive skin. Four (4) extra large holes in the shield allow for maximum air flow, so skin stays drier while soothing Comes with 2 pacifiers packaged in a sterilizer / carrying case that can be used to sterilize them with water in the microwave and transport them.