This award-winning stainless steel thermos bottle is the only 100% plastic-free thermos teat bottle! The bottle is plastic-free and therefore safe, environmentally friendly and above all practical. The top is interchangeable allowing the bottle to be used in different ways. This allows the bottle to grow from teat bottle to spout cup, straw cup and sports bottle. The thermos keeps the contents hot or cold for up to 6 hours. Pura is the only one in the world to be NONToxic certified by MadeSafe.org. Why Pura: SAFE: The only 100% plastic-free bottle... so no safety risk; Made of high quality stainless steel (#304 or 18/9 quality); Anti-bacterial medical grade silicone; MadeSafe™ certified; Extend the life of Pura bottles by changing the cap. This makes the bottles last a lifetime; Free from BPA, PVC, Phthalates and Lead; Bottle comes with medium-flow silicone teat, silicone travel cap and silicone sleeve; Content: 260 ml; Internal volume marking: 200 ml. Pura teats are designed to mimic the variable flow of breast milk. These pacifiers are designed to fit perfectly on your baby's mouth. The patented aeration valve is extra long and helps prevent colic and milk return. Pura bottles can be used to freeze liquid, use the silicone sealing disc, which is available separately. Do not overfill the bottle, the liquid will expand as it freezes (no more than 200ml in the 260ml bottle). Cleaning and sterilization The Pura thermos bottles are not dishwasher safe due to the insulation wall. You can wash it by hand with a mild soap and a bottle and teat brush. Avoid using harsh cleaning agents as they can damage the bottle. The silicone parts of the Pura bottles are dishwasher safe.