Planet Waves Renew is a patented string cleaning system preserves that new string tone and feel by cleaning both sides of instrument strings at once with an easy to use applicator and cleaning solution. Regular use of the system will extend string tone and life. The system comes complete with two string cleaning tools, 12 replacement pads and a cleaning solution. Simply apply the cleaning solution to the cleaning pads and wipe the applicator up and down the strings. Renew is the ultimate string cleaning system.