To use this chest ascender strap, first, find the attachment point on your harness. Then, you can use an accessory sling or a mailon carabiner (not included) to fix the strap to the front or back of your body as per your need. This will keep the chest ascender in the right position for a better climbing experience. When it comes to maintenance, after each use, give it a quick inspection for any signs of wear and tear. If it gets dirty, you can gently wash it with mild soap and water. Let it dry completely before storing it in a cool, dry place. Avoid exposing it to sharp objects or extreme heat as this can damage the strap.