Developed by dentists. Orthodontic nipple. Kills 99.9% of bacteria & keeps dirt out. Designed to allow for natural oral development. Less pressure on gums and developing teeth. Just add water, microwave & go! Bisphenol-A free. BPA free. 1 sterilizing cover. 2 silicone pacifiers. Ortho-Pro Silicone Nipple Pacifier: Designed by dentists to allow for natural oral development; Ultra thin, wavy stem easily fits between baby's gums and reduces pressure on developing teeth. Snap' n Clean Sterilizer: Kills 99.9% of bacteria in just 2 minutes in the microwave; Dishwasher and microwave safe. Manufactured to Playtex quality specifications. Pacifier and cover made in China. Nipple made in Germany.