Definitely a bit more intense in terms of sharpness than some similar tools, this Pin Wheel would be a great fit for sensation connoisseurs and more advanced pleasure/pain scenarios. In classic pinwheel form, the Pin Wheel features a rolling circle of spikes. Roll the wheel lightly over skin to feel (or have them feel) the effect of dozens of tingly teeth- press harder to really make a point. Be sure to test it out first- it really is quite sharp! Plastic sheath included.