1 PCS Collapsible Reflective Warning Triangle/car Warning Signs Each triagle measures:16.92"*16.92"*16.92" Material:HIPS+GPPS Non-skid base withstands up to 40 meters per hour winds Just pop open your trunk, unfold the unit and the warning triangle is ready for use. Our collapsible design makes for easy car storage and quick set up, no tools required. High degree of visibilityEach warning triangle is made using a red reflective material providing visibility to other motorists whether its day or night time