Analysis of information sources in references of the Wikipedia article "Dương vật giả có dây đeo" in Vietnamese language version.
Ever since the invention of the strap-on dildo, anyone can enjoy intercourse as the inserter, the receiver, or both. Strap-on harnesses are made of leather or fabric. The most common designs have an adjustable strap for the waist plus two others for the legs. In the front, a ring holds a dildo with a flared base securely against or slightly above the genitals.
