I purchased this kit after watching a video on YouTube of someone using it. I own a Sony a6000, and I made the BIG mistake in the past of blowing on the sensor to clean it (with my mouth) and then wiping it with a microfiber after realizing there was now spit on my sensor. I photograph UTV races about 6-8 times a year, and my gear is usually completely covered in dust, and sometimes I need to switch lenses while out at the track so some dust ends up on the sensor. I cleaned my sensor with this kit, and it left it looking like new other than 2 small hairline scratches I managed to get on the sensor probably from using the microfiber, but they are not noticeable in pictures.A couple of words of advice:1. When you open the little bottle, there's a small plastic cap that you need to remove to expose the hole for the cleaning liquid to come out.2. I personally found that a single drop on a swab was more than enough to clean my sensor which was filthy.3. Swap the swap across the sensor several times with the side where you put the solution, then use the other side to dry and clean up anything left behind.I have plenty of swabs and solution left over to last me a year. Highly recommend this if you need to clean your sensor, and don't forget to purchase an "air bulb" to blow off your sensor instead of using your mouth.