The Open Fire Third Generation Smart Male Stroker comes with 9 frequencies of vibration
The Open Fire Third Generation Smart Male Stroker comes with 9 frequencies of vibration, 4 thrusting speeds and ultra sucking feature thanks to the strong air pump integrated into the inside mechanism. When the sucking mode is on, the air pump forces the air out to create a vacuumed space in-between the sleeve and the plastic case, thus, it sucks your cock in. When it’s at its most extended, it pulls the air in to make sure that the sleeve contraction just like the real thing.