This swing cap gasket is made of plastic material, which can withstand the long-lasting use. Features the plastic material, which has high durability, not easy to deform. Fine workmanship, it the practicality. You can use these cap gaskets with confidence. Features -Color: As shown -Material:Plastic -Size:2.50X2.50X0.70cm/0.98X0.98X0.28in - Reliable: the leak-proof seal gaskets are leakage-proof, also convenient to store and will not take much space. - Enough quantity to use: you will get enough sealing gaskets, sufficient quantity for your daily replacements. - Easy to Use: this gaskets are easy to apply, and can provide a good sealing for your beer, , soda and other drinks. - Good Air Tightness: our gaskets can be inserted into the top of the , forming a fast airtight seal, avoid air getting into. - These gaskets replacement are reliable and serviceable, can withstand high pressure to replace your worn and broken gaskets. Package list: bottles gaskets