Liquid leaves streaks - Swabs are good in itself

I'm not quite sure if I ordered the right product here. There is still more, with other liquids such as "Sensor Clean" and "VDust Plus". This, however, has caused on my A77 sensor streaks - that's what you do not want to just have. I think the differences between these various fluids should also at least be better communicated in the product description.

The swabs are even in terms of size very good. I soaked a swab with 70% isopropyl alcohol and repeated cleaning - here I achieved the best result. Therefore, 2 stars for the swabs themselves.