These vaginal balls are unusual in that they stimulate, massage and train. Their gentle to intensive to-and-fro motion and caressing texture give way to an increasingly intimate massage. Smartballs are made of hygenically safe elastomed a medical-grade, latex-free, silicone product that had a harder-than-traditional-silicone consistency. They are very durable and wonderfully easy to clean. The unique design, velvety smooth surface and nummerous color variations are pleasing to the eye. A patented manufacturing method make Smartballs the most quietest balls in the world. Recommended by midwives. Detailed operating instructions are included and a sample of our lubricant Bodyfluid in every package of SMARTBALLS.