Overall length of the iVibe is 4" with a diameter of 1". It comes with two massaging heads, one has three vibrating balls and the other has 12 .125 long prongs. The iVibe requires 1 AA size battery, not included. There are also five additional titillating attachments. They are the Baby "G", the Vibro Bullet, the Teasing Tongue, the Slim Probe, and the Titillating Fingers. There is .25 fluid ounces of iLube included for your convenience! Besides being your favorite kit at home, the iKit iVibe X5 is a great traveling companion too!