Vac-U-Lock Code Black Double Penetrator Attachment. Double your pleasure with the Double Penetrator! Experience the amazing sensations of simultaneous vaginal and anal stimulation with this Vac-U-Lock Attachment featuring two 6 inches long phallic dongs. Use with any Vac-U-Lock set or accessory. <br /><br />Total is 7". 6" total for thicker shaft. 4.5" insertable for thicker shaft. Width at head for thicker shaft is 1.30". Widest part of thicker shaft is 1.40". Insertable for thinner shaft is 5.50". Width at head for thinner shaft is .80". Widest part of thinner shaft is .90"