Soft Material with Smooth Sensations!Discover the Sensation of Aerostimulation!TENGA has improved upon their famous CUP Style with the new AIR-TECH Reusable Vacuum CUP - now with a removable sleeve for cleaning! Also featuring an all-new airflow structure for boosted Vacuum Suction Sensation!If you're looking for a softer sensation, not as tight with smoother stimuli then the GENTLE is perfect for you. Featuring spiraling lines to tease and titillate, and a softer material.