These collapsible, reflective triangles from Cortina feature weighted bases that allow the triangles to rotate a quarter turn and still stay upright, even on busy roadways. Meets DOT, NHTSA and FMVSS 125 requirements. Single triangle also available for purchase (Part No. TR1). Kit consists of (3) triangles Storage case included Dimensions: 18-1/4″L x 5-1/8″W x 4-1/2″H