Ergonomic design of the varicella: Easy to use on both feet, from front to rear - socks, fingers, lateral and foot balls.Without wire and rechargeable and water-resistant: the USB load is portable and is made of painproof material, which can easily clean the body.2 speeds : This product has 2 speeds to allow easy or more powerful maintenance.Luz LED: A luz facilita a visualização em iluminação fracaThe package contains 2 roll heads: a fine roll for polishing and daily maintenance and a large roll for removing stubborn and dead skinProducts include:1 * washing machine1 * USB charging cable1 * fine-rolled head1 * large roll head