The guys are young, recently there was a crack on the side of the tire, I took the tire to the stove and fixed it, but the tire had to be stitched and then on the stove since the seam was about 4-5 cm, one said that a seam was needed and the other did not say. It was never done without a seam. This quality was enough for one day. They guys still have a lot to learn. I had to buy new tires the same day.