describe Specifications: 1 hole (0-3 months), 2 holes (3-6 months), 3 holes (6-12 months), Y hole (more than 12 months) Features Wide nipple replacement nipple for Avent Natural bottles The nipple's innovative petal design creates a natural latch similar to breast milk, allowing your baby to easily combine breastfeeding and bottle feeding. Function: Natural latch: easy to bring breast and bottle together Unique comfort petals: create an extra soft and flexible nipple Anti-colic valve: advanced anti-colic system emphasize: Easily combine breastfeeding and bottle feeding Natural latch due to wide breast-shaped nipples Give your baby more comfortable and satisfying feeding Unique comfort petals create an extra soft and flexible nipple Air enters the bottle, not your baby's tummy Advanced anti-colic system with innovative dual valves 0% BPA (bisphenol A free) Comment: 1. Manual measurement tolerance is 2-5g. Please don't mind your substitution. 2. Due to differences between different monitors, the image may not reflect the actual color of the item. Thank you so much! 3. SKU color is the color of product packaging Package Included: 1* wide mouth pacifier 【Versatile Functionality】This product is multifunctional and can be used for a variety of tasks, providing you with the flexibility and convenience needed to handle multiple uses with a single tool. 【Eco-Friendly and Sustainable】Made with environmentally conscious practices, this product is eco-friendly and contributes to sustainability efforts. It is designed to minimize waste and reduce environmental impact. 【High-Quality Materials】Crafted from premium, durable materials to ensure longevity and superior performance. Each product is meticulously tested to meet high standards of quality and safety. 【User-Friendly Design】Ergonomically designed for ease of use, this product offers intuitive controls and a comfortable grip, making it perfect for both beginners and experienced users. 【Exceptional Performance】Engineered for high efficiency and effectiveness, this product delivers outstanding results every time. Its advanced features ensure consistent performance, making it a reliable choice for your needs