The Philips Avent ultra soft pacifier for babies 6-18 months is designed with a FlexiFit shield for fewer skin marks and less skin irritation. This makes it a more comfortable choice for baby. 98% of babies accept the nipple. It comes with 2 pacifiers packaged in 1 sterilizer / carrying cases that can be used to sterilize them with water in the microwave. Features: -FlexiFit shield for fewer skin marks and less skin irritation -98% nipple acceptance -Comfortable soft silicone nipple -Developed with healthcare professionals and moms! -Comes with a sterilizer / carrying case ; use them to sterilize the pacifiers with water in the microwave and transport them hygienically