Reflective warning triangle Blue & red alternate flash , 27LED , 24LED ,51 LED for your choice,4pcs or 2pcs "AA" batteries Reflective warning ... triangleBlue & red alternate flash , 27LED , 24LED ,51 LED for your choice,4pcs or 2pcs "AA" batteriesFeatures:Roadway safety ... easy to handle Inner packing blown box+1pcs warning triangle High visibility :reflector works day or night ...