This is set of 3 MasterELD hazard emergency safety reflective road triangles. Brand new. 3 triangles + box. Approved by the DOT. Sand filled base makes the triangles unmovable in windy conditions. Size: 17 x 17 x 17″. Reflective lights on both sides of the triangle. We don’t fill up the base due to shipping cost so you will have to supply sand on your own.