Seals your retrofit LED assemblies and protects them from water condensation, moisture, dust, and other unwanted substances. Made of high quality rubber, very durable. Designed for HID conversion kits, aftermarket LED headlights, retrofit headlights, and many more of your retrofit lighting assemblies . This rubber housing seal cap can prevent any water condensation, moisture, dust, and other unwanted substances enter into your headlights or fog lights, keep all the lights working fine. Note: Before purchasing, please measure the size of your headlight in case that you get the wrong item. Please feel free to contact us if you have any question about this product. Package Content: 2 x Car Headlight Housing Seal Cap