Essential, but flawed
The protective foam covering will wear out in about 2 weeks. You have probably seen people wrap old strip washer covers, duct tape, or even blue rags around the bend to protect the customers wall from scratching after the protective foam cover wears off. Solution: Take a length of 1" clear plastic tubing, warm it in hot soapy water so it expands a litle, and push it over the tubing to replace the worn foam. It is a tight fit, but once you get it on it will never work out.