Dr. Brown’s Milestones Silicone Handles is an easy slip-on silicone handle for your narrow bottles. Keep the bottle your baby is used to, and slip on the Silicone Handles to turn any bottle into a lesson in building sippy skills. The soft yet durable material holds up to everyday use. Find the right fit for your Narrow bottles! Encourage independent drinking and help baby transition from bottle to cup with the easy-grip, flexible Narrow Silicone Handles. Convert your narrow bottles into sippy training bottles Dishwasher (top rack) and sterilizer safe No-Slip, Easy Grip BPA free Recommended for 4M+