With its classic bestselling shape. phallic head. and perfectly textured shaft. this 7 inches attachment will have you falling in love! Made with lifelike Ultraskyn material. the Vac-U-Lock 7 Inch Thin Dong Attachment works with all Vac-U-Lock systems. Proudly. made in America. Size total length 7.5 inches. insertable/usable length 6.5 inches. width/diameter 4.5 inches. circumference 5 inches.