Dial-in the personalized suction for the perfect experience with TENGA's innovative Aero. Innovative Aero Technology allows users to adjust the suction pressure and tightness in the Aero to customize sensations. There are 10 settings on the easy-to-use dial and a highly elastic ring that's embedded in the elastomer body to hold in air pressure, paired with multiple suctioning surfaces that provide intense stimulation to the user- it's like multiple cup styles in one!