Designed not to move, slide or tip-over even in extremely windy conditions, the Versa-Cones aid in marking multiple categories of evidence. Holes in the top of each cone can be used for crime scene flags. Versa-Cones are stackable and compact for easy handling and storage and are made of a durable high-impact material. The base measures 11.4cm x 11.4cm (4.5 x 4.5) and insures stability in windy conditions.