EFFECTIVE REFLECTIVE - Stand out in the dark with this reflective triangular sign, a must-have for safety at night. Perfect for roadside emergencies and camping trips. COMPLETE VISIBILITY - Composed of 17 x 17 Inches reflective panel and fluorescent plate, our reflective triangles are incredibly noticeable at night, during the day or in any weather. ALERT OTHER DRIVERS - 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. NO SAND BASE - The base of the triangle is not filled with sand, you can fill it with different weights of sand as needed. This allows the weight of the base to be adjusted according to the specific situation, increasing stability and safety. EASY SET UP - No tools required. 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. CARTMAN 12 Pack Warning Triangle,Enmergency Reflector, Emergency Triangles for Vehicles,Triangle Kit with Case (Without Sand)