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What is this black round thing on the roof of this transit company van? It was spinning fast. : r/whatisthisthing
![Amazon.com: iMunir Fishing Pole Rack Rod Storage Holder Strap Belt Adjustable for Truck Vehicle SUVs Wagons and Vans : Sports & Outdoors Amazon.com: iMunir Fishing Pole Rack Rod Storage Holder Strap Belt Adjustable for Truck Vehicle SUVs Wagons and Vans : Sports & Outdoors](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/513LEr6dxPL._AC_UF894,1000_QL80_.jpg)
Amazon.com: iMunir Fishing Pole Rack Rod Storage Holder Strap Belt Adjustable for Truck Vehicle SUVs Wagons and Vans : Sports & Outdoors
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Van Staal VR75 Bailed Series Spinning Reel (Black or Silver) w/FREE BRAID | Spinning reels, Silver, Spinning
![What is this black Spinning thing on top of big black van? Ot speeds up and slows down, relative to the vehicle speed. I though maybe self driving radar, but maybe just What is this black Spinning thing on top of big black van? Ot speeds up and slows down, relative to the vehicle speed. I though maybe self driving radar, but maybe just](https://i.redd.it/wfc65xdyhct11.jpg)
What is this black Spinning thing on top of big black van? Ot speeds up and slows down, relative to the vehicle speed. I though maybe self driving radar, but maybe just
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