Named after neurologist Dr. Robert Wartenberg, this pinwheel delivers a tingly feeling as the prickly pins roll across the skin. Depending on the amount of pressure you apply it produces a variety of sensations from tickling to pain. The Wartenberg Wheel is incredible for sensual play. Run it under warm water to heat it up or put it in the refrigerator for a cool sensation. Combined with a blindfold, restraints, and a feather, the heightened sensory experience will leave your lover breathless.