ZHOL 16-led 18 Flashing Mode Car Emergency Vehicle Dash Warning Strobe Flash Light Blue (White) COLOR:Blue&white ON/OFF BUTTON, SELECT PATTERN BUTTON. 18 FLASHING MODES.MEMORIZES THE LAST PATTERN USE. DIMENSION:8" ( width ) x 1.6" ( height ) x 5.1" ( depth ) EASY TO INSTALL, WITH 3 SUCTION CUPS FOR QUICK SCREEN MOUNT .