This baby bottle is designed with both babies and their parents in mind. Age: 0+ months. Made from extremely durable and heat-resistant borosilicate glass. It does not release microplastics into the milk. Round nipple made of natural rubber (slow flow). The round nipple corresponds to the nipple of the popular BIBS Colour pacifiers. Nipple with anti-colic function. All parts are made from completely safe food-grade materials. The nipple features an anti-colic valve that allows air to escape, reducing the air swallowed during feeding. The nipples are made from natural rubber. Since natural rubber is a natural material, the color may vary. Nipples made from natural rubber latex should be replaced every 4-6 weeks. The bottle nipples are available in two flow rates: slow and medium. Complies with European standards: EN 1400+A2 EN 14350:2020. This set includes: glass bottle 110 ml / 225 ml, lid, 1 natural rubber nipple (slow flow), milk stopper, screw cap, and collapsible funnel.