Feature: It is Perfect trim and shave, Change foil every 12 months for best Result Best performance that feels great Wet and dry use; for use in shower and easy cleaning waterproof for shower use and easy cleaning, makes it convenient to trim and shave your body in the shower and easy to clean Replacement for Shaver Models: ES-RT33 ES-SL31 ES-RT34 ES-RT36 ES-RT37 ES-RT47 Package List: 1x Razor Screen Foil (No retail package)