The Pigeon Peristaltic Silicone Nipple features a Y-cut design with a slim neck profile. Made from BPA/BPS-free silicone, this single nipple is engineered to encourage natural sucking patterns in babies, providing a comfortable and safe feeding experience. Key features: • Y-cut design for controlled flow • Slim neck profile for better fit • Made of BPA/BPS-free silicone material • Peristaltic design promotes natural sucking • Single nipple per package The nipple is designed with a 6.7mm opening size that helps regulate milk flow. The peristaltic design mimics natural breastfeeding movements, helping babies develop proper oral motor skills. The slim neck profile ensures compatibility with Pigeon slim neck bottles. Made in Japan, this nipple meets strict quality and safety standards for baby feeding products.