1. Using a coin, insert it in the slot on the cap and turn it clockwise (right) to open the cane tip. 2. Install three AAA batteries in the cane tip, making sure all three positive contacts are facing downward. 3. Close the cane tip and use the coin to lock it, turning the cap counter-clockwise (left) this time. 4. Test cap to make sure it is closed securely before attaching it to cane. (The SureStep Cane Tip is light and motion sensitive. When cap is in the locked position, it will light only when tapped or used in a darkened room, in low lighting or at night.) 5. When your SureStep tip has tested successfully, you may install it on your walking cane, and enjoy walking confidently at night!