For those with sensitive breasts who get off on breast play, this is the product of choice. Two silicone pads stick easily to the skin, and the material is very soft. Each pad contains a vibrating micro-bullet and with a remote they can set to vibrate at low or high speeds. Sitting at my desk at work with two people in the office (remember, this is AVN) with me, I tried on the pads and yes, they are stimulating and yes, they are hard to detect.