Soft elastomer material ###Suction rotor that gently and sometimes rhythmically sucks on the skin. #Silicon suction mouth that fits to the target area and sucks gently. ##The form fits in your hand and the lightweight body does not tire you even after long use. ##● The suction part can be washed with water after use for hygienic use. (*Please do not wet the battery box.) ##● 8-pattern suction ##● Silicone suction part ##● Quiet design