Description This product is a milk storage bottle gasket, which is mainly made of mild silicone material. It has a softer texture and high flexibility. It is suitable for milk bottle caps of various calibers. It can help you better seal and make breast milk more Safe and hygienic, it is an indispensable product for mothers and babies. Features -Color:White. -Material:Silicone. -Size: About5.20X5.20X1.30cm/2.04X2.04X0.51inch. -Made of a softer silicone material, it is flexible and durable, and is suitable for feeding bottles of most calibers. -The milk bottle gasket has fine workmanship, excellent texture, high temperature resistance, can withstand high temperature disinfection, and is very safe. -It is an indispensable accessory to help you better seal the milk storage bottle. -Made with excellent craftsmanship, it is safe and durable, with excellent texture, and will not tear easily. -The milk storage bottle gasket has a good leak-proof sealing effect, making your breast milk storage safer.Package list: 10 x Sealing Rings