Vac-U-Lock Realistic Lock And Load 6-inchThere's only one obvious difference between this dong and the real thing it stays hard all the time and is ready to be used whenever and for as long as you wish to. Made out of rubber, it is 6 inches long, veined and colored to mimic to the max the real thing. And most of all, it is Vac U Lock compatible so you can use it with your favorite strap on system for hours of role play fun. Product Details: Realistic: No Size Circumference: 0. 000 Lubricant