Versa Cones are perfectly suited for outdoor use at crime scenes. The heavy bodied and angled construction help keep the cones in place in windy conditions. The four sided cone can identify evidence placement at any photography angle. Use in conjunction with Evi-Lites, reflective circles, crime scene flags or chemical light sticks. These Versa-Cones are stackable and compact for easy handling and storage and are made of a durable high-impact material. The base measures 4.5" x 4.5" (11.4cm x 11.4cm) and insures stability in windy conditions.