Slide the button down for single light at the end Slide the light up to get full ring of light Product is off when button is in center position Includes a total of three LED lights Utilizes button cell batteries (inserted and separated by pull tab) Use the key ring for your keys or attach to your bag, purse or backpack Push ring in to attach to your bag or to attach key ring A great promotional item for realtors, trade show giveaways and car dealers