The glow on the go selfie light is your secret weapon to a flawless face. You'll never have to worry about the perfect lighting again when you take a selfie. You can control the brightness of the Mini bulbs by continuing to click the button for professional-quality lighting, on-the-go. Measurements: 3.33 inch diameter; opening 3/8 - 1/2 inch. E.L.F. Makes the best of Beauty accessible to every eye, lip, and face. Your originality is infinite, and we are inspired by what makes you unique. From the early explorer to the trend-obsessed beauty junkie-glam or bare faced, minimalist, maximalist and every look in between-we are for every eye, lip, and face. Proud to be 100% vegan and cruelty-free, worldwide.