Do you need convenient leak-proof caps for glass bottles? If yes, then this product can be used as for you. The caps are reusable and suitable for replacement use, leak-proof made of PE material, simple and practical. Features -Color:White -Material:PE -Size:5.30X5.30X1.00cm/2.08X2.08X0.39in -Note: Diameter: 53mm, Suitable for 100ml jar - Replacement: The replacement bottle caps be used many times and is easy to store and use, giving you great experience - Safe and smooth: Made of PE material, safe and smooth, excellent and useful, you can use it with confidence - Good sealing: The seal is stronger than ordinary bottle caps, clean and safe, and creates good sealing effect - Stable and practical: excellent and useful, universal and reliable for home use - Wide application: multi-functional and practical, suitable for milk bottle, glass bottles Package list: pudding jar lids