Windjammer Round bar roof rack wind noise reducer

The Yakima Wind-Jammer is a nine inch long clip that sits in the middle of a round crossbar. This product is specially engineered to divert the wind from the crossbar, which reduces the noise caused by wind resistance. The Wind-Jammer is made of a UV resistant PVC plastic, which makes it durable and sturdy. Fits Yakima round crossbars, does NOT fit square, aerodynamic or factory bars. Color: Black. Manufacturer's part number: 8001115