Check the listing for details. Silicone Hole Plugs Round Rubber Stopper for 55mm/2.17" Hole Black. Condition: New. Listed at 17.20 USD. Description:Material: The hole plugs are made of silicone, which is soft, flexible and wear-resistant, has waterproof and dustproof sealing, and is not easy to crack, shrink, harden or break, ensuring long-lasting durability.Good Sealing: Our Silicone plugs are designed to provide a secure and waterproof seal to the hole, preventing liquid and gas from draining out and dust and others from entering. The T-shape design conforms better to smooth surfaces, is easy to use and won't fall off easily.Easy to Use: No tools are required, just select the correct size plug according to the hole plug diameter and press it into the hole to complete the installation, which is simple and quick.Description:Material: The hole plugs are made of silicone, which is soft, flexible and wear-resistant, has waterproof and dustproof sealing, and is not easy to crack, shrink, harden or break, ensuring long-lasting durability.Good Sealing: Our Silicone plugs are designed to provide a secure and waterproof seal to the hole, preventing liquid and gas from draining out and dust and others from entering. The T-shape design conforms better to smooth surfaces, is easy to use and won't fall off easily.Easy to Use: No tools are required, just select the correct size plug according to the hole plug diameter and press it into the hole to complete the installation, which is simple and quick.