can not understand all the positive reviews here. Yes, the sticks fit very well to the original stick and serve their purpose, but they are made of plastic and therefore relatively hard (not such as. Silicone sticks) and since they are made of plastic, the grip is not so particularly well. the existing knobs on the stick hardly bring something quite the opposite. playing times longer than an hour of thumb begins very slowly to feel a little numb ... not strong, but still unpleasant. I can not recommend the sticks therefore and am now on another, which, switched from silicone. This also rings and no knobs and offer much more grip and feel much softer and more comfortable to be. moreover I have for 4 pieces just 1,90 incl. shipping paid.