not just for cars for all the guitar playersthis is excellent cleaner for gloss finishes high quality product used by the pros for a reason useful more powerful than i expected this booster pack works very well i have it five stars great item will save you time and money works just fine when i saw aaa insurance used this to jump my car i asked how they liked it they use them all day and the but i have used same unit of friend works fine five stars would still keep that soft feel longer but still great product great product mcguires final inspection car refinishig polish another good product from meguiars