Passion just escalated to another level! These independently controlled rubber-cote bullets have 7 separate functions of vibration, pulsation and escalation. The hand-held power pack has push button controls with an EZ-Stop feature along with two plug-in jacks. Use 4 AA batteries, not included, in the power pack for orgasmic vibrations. Each bullet measures 2in long with a 1in diameter. Double up on passion with the Passion Bullets!