DOT approved, composed of 17 x 17 Inches reflective panel and fluorescent plate, Fatfox reflective triangles are effectively reflective even in low visibility situations The folding design and snap-fit design of emergency triangles make it very easy to use and also meet the need of a quick and convenient storage. With a rotatable and sand filling base, each weighs 2.98 lbs. The heavy-duty stable base make S1 strong wind resistance and can adapt to bad weather with wind and rain. These plastic triangles are designed with a vivid fluorescent orange color for maximum daytime visibility and red acrylic reflectors that provide illumination from headlights in the dark. Warn motorists to roadside trouble, keeping you and your passengers safe. A great assistance kit to keep in your car or truck for emergency use. Warn motorists to roadside trouble, keeping you and your passengers safe. A great assistance kit to keep in your car or truck for emergency use.