1. It is used for changing the original headlight bulb seal cap. 2. It can help preventing water, dust, moisture or other small things out from your headlights or fog lights and make sure everything working fine. 3. Allow you easy to install the aftermarket headlight bulbs/Lamps, Xenon Lamp, Bi-xenon bulbs without modifying. 4. This rubber housing seal caps only work for 10cm inner diameter lights housing, please double check with your stock headlights housing before purchase.Specification: General Material Silicone Product Size 10.7*6cm Weight 122g Package Weight One Package Weight 0.14kgs / 0.31lb One Package Size 12cm * 12cm * 9cm / 4.72inch * 4.72inch * 3.54inch Qty per Carton 40 Carton Weight 6.11kgs / 13.47lb Carton Size 27cm * 38cm * 29cm / 10.63inch * 14.96inch * 11.42inch Loading Container 20GP: 896 cartons * 40 pcs = 35840 pcs40HQ: 2080 cartons * 40 pcs = 83200 pcs