Starter Kit Includes 1x 5oz Bottle with slow flow nipple, 2x 80z Bottle with medium flow nipple, 2 extra slow flow nipples, 2 extra fast flow nipples and 1 Teether. FEATURES: Both Nipple and Bottle is made of Medical Grade Silicone Very safe, safer than any type of plastic bottle Safer than glass Free from harmful elements BPA Free, PVC Free, Phthalate Free Designed to mimic breastfeeding in shape & touch The nipple has a wide mound that helps babies to naturally latch, similar to breastfeeding. The soft, silicone body provides a tactile feel that is closer to ski