hello J have read comentaire and I think there has someone who does not know that c is used as a suction cup cupping the c is to say the saignier to regenerate the blood corp see goole rained for ample information here is me I am same kit but not buy here and frankly it is good when you understand however is its realement c is the small incition as when one cuts and then (see info on the net here is because I have seen the comments and I wonder if people know realment however his serves and especially j s use me in fact since a year and frankly hijama my help in eliminating water retention that I had the foot and in various health problem here is if watching on youtube type hijama