Flashing Head Boppers are a piece of cake. For winter holidays get a flashing snowflake. Put one on and you’ll look svelte. Best of all it will never melt.. Flashing Snowflakes Head Boppers flash White LEDs continuously once activated. Simply slide the ON/OFF switch that is located on the battery pack to ON for light up fun! Snowflake Height: 2.75 in. , 6.98 cm. Snowflake Width: 3.0 in. , 7.62 cm. LED Colors: 2 White 3 replaceable AG13 batteries included and installed.