Item Type: Bottle Nipples_x000D_ Material: Silicone 1ROUND HOLE: Its design can visually and physically mimic a mother presence, facilitating a smoothness transition. Its spiraled design aims to replicate a real feeling further easing the switch for your little on. 2REAL BUST FEELING: This bottle nipple offers a realistic texture that imitates the feeling of a mother chest. It gives your baby a comforting experience, minimizing the resistance to transitioning from breastfeeding to bottle feeding. 3DURABLE AND NON DEFORMING: Designed to accommodate high suction force from infants, this nipple maintain their shape despite intense tugging and pulling. It ensures a long lasting and stable feeding experience for your baby. 4LIGHT FROSTED SURFACE: With a lightly frosted outer surface, our bottle nipples provide a non stick, smoothness feel, closely resembling the touch of a mother chest. Its rounded design mirrors the curve of a chest. 5SILICONE MATERIAL: Made with silicone material that can withstand high temperatures, this bottle nipple can be easily washed through boiling, steaming, or ultraviolet cleaning.4 x_x000D_ _x000D_ BottleNipples