These are light weight, 3K carbon fiber plate that is water jet cut and CNC machined. They are backed with black aluminum mesh grill to keep debris out.The set comes with both left and right carbon fiber vents and stainless steel course thread button head allen screws, to give the rivet look while using the factory mounting clips. They bolt right up, with no modifications. The factory metal vents weigh 1 lb 1 oz each while these light weight carbon fiber vents weigh only 4 oz. We strive for the best possible service for our customers. We will do our best to resolve any issues. The item "C3 Corvette Custom Carbon Fiber Light Weight Rear Deck Vents Pair 68-76 Stingray" is in sale since Saturday, November 16, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Exterior\Mouldings & Trim". The seller is "nic32882" and is located in Perkasie, Pennsylvania. This item can be shipped worldwide.