Mutual Industries Yellow/Black retractable cone bar is perfect to use in combination with traffic cones. Mutual Industries Yellow/Black retractable cone bar can expand and retract from 4 to 8 as needed. Cone bar forms an instant barrier and it offers high visibility and portability. • Cone bar. • Used in combination with traffic cones. • These reflective cone bars form an instant barrier. • Highly portable and versatile. • Expand and retract from 4ft to 8ft as needed. • Sold as 1 Each.