1. SHAPE:
Triangle
16 inches x 16 inches x 16 inches

2. PRACTICAL USE:
A non-skid, heavy and stable base.
Not easy to be knocked over or blown away from passing vehicles or in extreme weather conditions such as fog, wind, rain and snow.
Day/Night Time Reflective indicator - built-in reflectors on both sides that are visible even under limited visibility conditions.
Easy to set up and fold down. 
Compact and portable. 

3. IDEAL FOR:
Road construction, work trucks, tractors, trailers, maintenance vehicles and other safety equipment.