High quality penis pump with the world's first automatic, vibrating, spring loaded head stimulator that moves with you as you grow •Powerful multi-speed vibrations •Premium suction •Quick action EZ grip trigger pump •Seamless cylinder with measurements •Cylinder removes for easy cleaning •Flanged base for secure fit •ABS and TPR •2 AA batteries •Cylinder: 7.5" x 2.25"/19 cm x 6 cm