Kit supplies 3 easy-to-assemble reflective warning triangles and support bases. Triangle made of durable acrylic plastic which unfolds and locks into place. Fluorescent interior strips provide and effective warning for daytime use. Base is equipped with non-slip foam pads and designed to brace triangle for wind resistance. Comes in durable molded plastic case with instructions. Triangle is 16.5”x17.25” Base is 17” long Meets DOT standards.