Abstract: A compact and convenient hazard marker has a housing and a suction insert. The bottom end of the housing covers the suction insert where the releasing tab for the suction is hidden within the housing. Another embodiment of the invention has a spring-loaded mechanical device attached to a flag inside the housing. The flag is extendable and retractable outside the housing. The flag is retained by a locking means. There are grooves on the exterior wall of the housing for easy storage. The housing and the flag are painted in fluorescent color.