The Canpol babies Easy Start GOLD Anti-colic Bottle is made of safe, BPA-free material. It features an anti-colic valve that prevents air bubbles from building up in the milk and, when combined with the proper feeding position, reduces discomforts such as colic and gas. Its compatible with Canpol babies breast pumps, allowing you to combine bottle and breastfeeding. Its microwave-safe and dishwasher-safe. Warnings: Do not overtighten the teat cap as this may prevent the teat from venting properly. Do not pierce or enlarge the holes in the pacifier, as this may damage it. We do not recommend washing the bottle and nipple in the dishwasher, as detergents or cleaning agents may damage the product. Do not use antibacterial agents for cleaning. When heating food in a microwave, the bottle must be open. Be especially careful when heating in a microwave. Heated food should be stirred to ensure even temperature distribution and the temperature should be checked before serving. Do not leave the feeding pacifier in a sunny or hot place or in disinfectants (sterilising solution) for longer than recommended. For safety and hygiene reasons, it is recommended to replace the pacifier with a new one no later than every 2 months.