Features: Made of transparent food-grade soft silicone material, safe and non-toxic, harmless to human body. Humanized bump idea, let bumps scattered around the breast, just like mother's areola. Petal design makes mom lighter and easier to fix, and also maximizes the skin-to-skin contact between mother and baby. Super soft, light and full of flexibility. Cross milking holes, variable flow teat, suitable for babies of all ages. The nipple designed with spiral mechanics makes the nipple not easy to dent when the baby is feeding. The space between the mother's nipple and the head of the nipple shield prevents the baby from biting the nipple. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!