3.75” Diameter x 1.25” H. ABS Plastic. Use the two strong magnets on the back to attach to your car or boat. Press the centre button to cycle through 9 different modes. 12 powerful red LED lights. Increase your visibility. Alert other motorists to your vehicle in case of emergency. Weather resistant. Includes 3 ‘AAA’ batteries (included/inserted). 9 different modes: Alternate, blinking fast, blinking slow, rotate, “S.O.S.” light, steady on strong bright, steady on general, two lights and four lights. Individually boxed. Instructions included. A great addition to your car or boat emergency kit PAD 1C – 1.5” W x 0.5” H (above/below power button)