So I commend this test strip lot. They are simple and no frills. Perfectly adequate that you throw them anyway after about 10 minutes in the trash. The price is unbeatable. The delivery went well Ruck Zuck. I bought the strip to learn just once know my body. 'Cause all I can not see and touch, I do not think :-) But the test works great. But how little some here have already written: The test line was with me also not as strong as the Line of Control !!! But it is still clearly visible. For me it is so that the tests only on the 17th, 18th, 19th were or even 20 days is positive, although I always cycles of 28 - have 32 days. So please do not go crazy when the 15th or 16th day is still no second line as ;-)