Butt plug with tunnel made of aluminium - this Buttplug-Tube has it all. In addition to its filling function a continuous tunnel allows the insertion of douche heads.Lubricant is recommended.Length of Shaft: ca. 9,5 cmTotal Length: ca. 10 cmOutside-diameter: ca. 20-37 mmTunnel-diameter: ca. 16-24 mmMaterial: Aluminium