The BIBS glass baby bottle is the essential accessory for your baby and toddler. Available in a variety of colors, it will perfectly match your other baby accessories. Specially designed and developed from pure, high-quality material, they are 100% chemical-free and do not release any harmful substances into the milk, making them a simple and safe solution for parents. You can mix and match the bottles according to your color preferences. Features: A glass baby bottle specially designed and developed for your child, made from pure, high-quality material. Glass is the purest material for food and drinks, as it is 100% chemical-free and does not release any harmful substances into the milk. The glass used is premium quality borosilicate glass, heat and temperature resistant, both very durable and extremely strong. Thus, the bottle is resistant to freezing, thawing in boiling water, microwave heating, and dishwasher use. The teat has been specially developed to match the teat of our popular BIBS Color pacifier, which promotes the correct sucking technique for successful breastfeeding, preventing nipple confusion if you are breastfeeding and supplementing with a bottle. The teat is made from soft natural rubber latex and designed with an anti-colic valve to ensure the best milk flow for your baby. The teats are available with slow and medium flow rates, suitable for both milk and water. Includes a milk lock for easy and hygienic storage, which is placed under the screw cap and the cap. Includes a funnel for quick and easy bottle filling with less milk/formula waste. We recommend replacing the nipple every 4 to 6 weeks for safety and hygiene reasons. All parts are made from 100% food-grade materials with the utmost attention to safety and recyclability. Includes measurements in ml and oz.