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 100% waterproof for shower use and easy cleaning, Specification: Condition: New Compatible Shaver Razor Head Inner Blade Cutter For Panasonic : ES-RL21 ES-RL40 ES-RT20 ES-RT30 ES-RT40 ES-RT31 Package includes : 2X Shaver Inner Blade Cutter (NO retail package) .