With its classic bestselling shape, phallic head, and perfectly textured shaft, this 7â   attachment will have you falling in love! Made with our lifelike UR3 material, the Vac-U-Lock 7 Inch Thin Dong Attachment works with all Vac-U-Lock systems and is Proudly Made in America. Dimensions: Total Length 7.5", Insertable/Usable Length 6.5", Width/Diameter 1.5", Circumference 5". Material: UR3.