24 Hour Fitness sometimes offers a free 3-day pass for potential new members to try out their facilities. This allows you to use their gym and attend classes as if you were a member for three consecutive days.

To claim this offer, typically you would need to go to the 24 Hour Fitness website and navigate to their 'Free Gym Pass' or similar promotional page. From there, you would fill out the form with your information, and they would email you a free pass that you can print out or show on your phone at the gym.