The bottle caps is manufactured with safe and food-grade material, and practical for use. Perfectly for sealing milk bottles for your home or office. Excellent and practical, excellent sealing effect, safe and reliable, it will bring you . Features -Color:Transparent -Material: -Size:2.20X1.90X1.50cm/0.86X0.75X0.59in -Size:2.00X1.80X1.40cm/0.79X0.71X0.55in -Size:2.00X1.70X1.40cm/0.79X0.67X0.55in -Size:1.61X1.20X1.40cm/0.63X0.47X0.55in -Note: The inner diameters are 19mm/18mm/17mm/13mm respectively. - The bottle cap has good leak-proof and sealing effect, which helps to seal your food and prevent leakage. - Taken from sturdy and safe material, these lids are light, and not easily deformed. - This jar lid is great for round storage jars, glass jars, seagoing jars, canning jars etc. - The convenient Bottle Lids are perfect for home, camping, milk tea shop, coffee shop, etc. - The Jar Lids can be used for a long time and will prevent your beverage from dirty items. Package list: 20 x bottle caps(2.20X1.90cm) 20 x bottle caps(2.20X1.80cm) 20 x bottle caps(2.20X1.70cm) 20 x bottle caps(1.61X1.20cm)