DescriptionThese are cup sealers, which are made of high-quality materials, durable and can be used for a long time.The silicone sealers can be adsorbed on the cup without deformation and can withstand high temperature.Features-Color: White-Material: Silicone -Size S: About7.00X7.00X0.25cm/ 2.75X2.75X0.10inch-Size L: About8.60X8.60X0.25cm/ 3.38X3.38X0.10inch-Made of food grade silicone material, safe and not easy to deform.- The silicone sealer can be adsorbed on the cup without deformation.- This practical cup sealer works great with mugs, mason jars, too.- They are great for home and office use, greatly meet your needs.- Can be reused for many times.