Ok this tool is made of a steel rod and walnut handle turned on my lathe. Me and my neighbors insulated our garage doors for the winter. Typically your supposed to add tension to your garage spring to keep everything in check with garage door opener. So my neighbor had a steel rod he ground down to fit the spring collar. I turned a piece of walnut from a tree i cut down earlier this year and made a handle with some length for leverage. Custom made tool tensioned three garage doors and didnt cost us a dime. I know it may seem a little overboard for a one time use tool. But hey experience on the lathe and practice for some day making my own lathe tools priceless.