The sports water bottle caps is manufactured with PE material, durable and practical for use. Perfectly for sealing water bottles for sports. Excellent and practical, excellent sealing effect, safe and reliable, it will bring you good using experience.Simple to replace, useful and excellent, easy to use, bring much convenience to your daily life. Features -Color:White -Material:PE -Size:3.00X3.00X3.50cm/1.18X1.18X1.38in- The reusable replacement bottle caps have been used many times and is easy to store and use, giving you great experience. - Made of stable material, safe and durable, excellent and useful, you can use it with confidence. - The seal is stronger than ordinary bottle caps, clean and safe, and creates good sealing effect, leak-proof. - Stable and practical, good performance, excellent and useful, universal and reliable for home use. - Wide application, multi-functional and practical, perfect and suitable for water bottle, drinking bottles. Packing list: 24 x Replaceable Bottle Caps