Raging Hard On 6 inches Dong Vac-U-Lock Attachments. Enrich your dildo harness arsenal with a new toy that you will definitely enjoy. The Vac-U-Lock dong is a great accessory from Doc Johnson that is designed exclusively for Vac-U-Lock system harnesses. Made out of firm rubber, this dong is shaped and colored like a real cock. On top of that, the thick veined texture will deliver increased stimulation to the receiver during the play. Realistic penis attachment is a part of the Vac-U-Lock Modular System. Dong is non-vibrating sex toy for anal, g-spot exploration. This item is compatible with all other products from the Vac-U-Lock line. Made using phthalate free, non-toxic materials Sil-A-Gel, PVC. Dong measures 6 inches long by 1 inch to 1.5 inches wide. Details: circumference 3.77 inches. Dimensions 5.80 inches length, 1.20 inches width, 1.20 inches depth. Insertable length 5.80 inches. Vac-U-Lock from. Doc Johnson Novelties The Great American Toy Company. Vac-U-Lock 2021.