Using the DeWalt TSTAK Mobile Cooler is a breeze. First, open the lid and fill it with your favorite drinks and ice. Make sure to close the lid tightly to get up to 3 days of ice retention. You can use the bottle opener on the lid to open your soft drinks and place your cans in the holders. When it's time to move the cooler around the jobsite, just pull out the telescopic handle and roll it on the 7 - inch wheels. Remember, this cooler is IP54 water - resistant, but try to avoid submerging it. For maintenance, clean the cooler regularly with mild soap and water. Keep it dry when not in use. Also, when combining it with other TSTAK modules, ensure proper alignment for a stable setup.