Iroha is coated in a soft, supple material, with smooth, refined finish. All three products are splash proof, and can be washed in water with ease. With its "anti-dust coating", it also repels dust, for a clean, hygienic experience every time. Iroha is designed to provide for all tastes, with subtle to strong vibrations, and a rythmical pattern, for you to choose and use as you please. Iroha comes in a case that also recharges it. Simply place in its storage case to charge, so next time, you can use it as soon as you wish. Self-care truly it at your figertips, cleaner, faster and stronger than ever before.