Since the Children's jeans are broken in a very short time on his knees - and because the tailor's usually like to have more money to repair than the cost actually Jeans - I ordered the patches. After instructions washed and ironed - all in the knee area. The result - either broke away from the patch even when wearing himself - but no later than the next wash cycle, I found it most completely replaced again in the washing machine. This was not only in a pair of jeans, but with a total of 10 jeans as (patches color blue and light blue). It's a pity we did nothing for the money.