Totally smooth and made from Medical Grade Stainless Steel with a high polished finish, once fully inserted all that remains is the beautiful ball on the end. The wand is completely hollow through out to allow the wearer to urinate or cum at will. We do not recommend that the ball be unscrewed while fully inserted to avoid over insertion of the wand. Basic Specs = Total Insertable Length = 120mm � Maximum Diameter = almost 10mm