Take baby steps to sippy cups with Dr. Brown’s™ Options+™ Wide-Neck Sippy Bottle Starter Kit. Transition from bottle to cup one step at a time with this nipple-to-sippy conversion kit. Using the Dr. Brown’s Option’s+™ Wide-Neck bottle that baby is familiar with, just remove the vent and replace the bottle nipple with the super soft, 100% silicone sippy spout. Plus, it comes in a variety of cute colors and prints! The sippy spout fits both 5 oz/150 ml and 9 oz/270 ml Dr. Brown’s Wide-Neck Options+ bottles. The Sippy Bottle Starter Kit is dishwasher (top rack) and sterilizer safe. Kit includes a 9 oz/270 ml Options+™ Wide-Neck bottle, level 3 nipple and a sippy spout. BPA free. 6m+.