SDS Safety Data Sheet Information Station 3-Way Sign provides optimum viewing from all sides. 3-way signs have a Unique 180° construction design that stands out, visible from either side as well as from the front. Hang sign to point out your HazCom Communication Center. High quality 1/8" Acrylic plastic will not rust or corrode. Double-faced tape provides an easy mounting and includes pre-drilled mounting holes for optional mounting.