MARK Falcon Self Rescue System is a relatively safe, simple, low cost self-escape Controlled Descent Device that functions as an alternative means of emergency escape when needed. It appeal to the following group of customers: 1. Developers, Building owners or Tenant Groups in office buildings, hotels; 2. Small businesses in buildings with windows or glass panels that can be modified for easy removal; 3. Individual home ownership for families in high rise apartment --- stores in a closet --- in many cases requires no modifications to structure.