Feature: It is Perfect trim and shave Change foil every 12 months Replacement For best result, Wet and dry use; 100% waterproof Replacement For shower use and easy cleaning,makes it convenient to trim and shave your body in the shower and easy to clean100% waterproof Replacement For easy use and cleaning Specification: Compatible Razor Razor Head Inner Blade Cutter Replacement For Panasonic :ES-RT50 ES-RT51 ES-RT60 ES-RT81 ES8043 ES-RL21 ES-RL40 ES-RT20 ES-RT30 ES-RT40 ES-RT31 ​ Package includes :2x Razor Inner Blade Cutter (No retail Package)