The silicone car key cover is durable, flexible, and waterproof. So when you get the silicone key cover on your hand, it is easy to use the cover to protect your car key, because it is flexible. When it is soiled, you can use water to wash it, because it is waterproof. All silicone car key case produced by our factory, we have our model department, so we also can produce customized silicone key case. If you have any needs, can ask me. Thanks.