These aluminum bottle caps feature a transparent finish, allowing users to easily identify contents without opening the container. Designed with precision threading, they provide a reliable seal for glass bottles, making them suitable for kitchen storage, liquid preservation, and DIY projects requiring secure closures. Features -Color:Silver -Material:Aluminum -Size:2.20X2.20X1.30cm/0.86X0.86X0.51in -Convenient portability: the mini transparent bottle accessories with mm aluminum screw top caps are designed for easy portability, making them ideal for travel -Secure sealing: the screw top design of the aluminum caps a secure and airtight seal, preventing leaks and spills -Aluminum: crafted from aluminum, these caps are and resistant to deformation, ensuring reliable performance -Wide application: these screw top caps are compatible with a wide range of glass bottles, cups, and storage containers, making them highly versatile -Flexible and secure fit: the threaded design of the aluminum caps provides a flexible and secure fit for most glass bottles, ensuring a tight seal Package list: 50 x Leak-proof Bottle Cap