Using the Fluke C25 carrying case is super easy. First, unzip the case. Then, place your Fluke digital multimeter inside gently. You can also put small accessories in the inner pocket. When you're ready to move to a new job site, just grab the hand strap and go. As for maintenance, keep it clean by wiping it with a soft, dry cloth. Avoid exposing it to extreme heat or sharp objects. If it gets wet, dry it thoroughly. Make sure the zipper is closed properly to protect your meter from dust and small particles. This way, your case will last a long time and keep your meter safe.