Extra insert sleeve for the Satisfyer Men - The masturbator "Satisfyer Men" must be purchased separately!Allow the wild and curvy funnel of the "Pressure Spiral" sleeve to fill you with formless bliss. The subtle spirals and crescendo of caresses entwine your penis. This, combined with directional resistance allows you to reach gale-force orgasm time and again.This article is an optional accessory. You need the Satisfyer Men to use it.Material: Cyberskin Silicone