Diesel Laptops 20 Pack of 33mm Lug Nut Cover with Red Reflector Screw On for Commercial Heavy Semi Trucks (Peterbilt, Kenworth, Volvo, Mack, International, Freightliner, Western Star) from 33 mm - Standard size for all commercial heavy & medium semi trucks Item is made of plastic with chrome finish Screw/Thread On Height: 3-1/4" Quantity of 20