1)magnetic roof top car sign 2)different color can be chosen 3 ... cheap price 4)material:PS Feature: 1) magnetic roof top car sign 2)color:red,green,yellow,bule,grey3)size ... bottom has strong magnets, can be fixed in the car top, and anti-scrape flower design to keep, maintenance vehicles, ... Shop, Customer Wait, Do Not Start, Hold, No Brakes, Oil Out, Parts, Polish, Quick Lube, Road Test, Sold, VIP, Wash, ...