Made of high quality Polyurethane(PU) material,close to your skin,good touching feeling and non-toxic. A physical workout device for enhancing your muscles,make you can good body shape without even lifting a finger. Using advanced technology, scientifically exercising your muscles will not harm your body. According to suitable power and speed on body by low frequency,which make a rhythm and sort impetus on body. Adhesive gel pad,if you feel uncomfortable when training,you can use wet towel to clean dirty side for regaining pasting again at moment. Use Method: 1.Install the stimulator. 2.Tear off the patch from the film. 3.Paste to the place where you need to exercise. (Note:After using,need to paste the patch to the film) How to clean the gel patch: 1.Dip the water with your fingers and wipe the surface of the gel. 2.Put it in a well ventilated place to dry. Note:Do not carry out maintenance for a long time or frequent, otherwise it will lead to shortened service life.