Very high-quality polishing sponge with excellent durability. I used it with the simple 20V Parkside cordless screwdriver on the fast speed (about 1400-1500 RPM) for applying the K2 Lamp Doctor polish, before the final sealing with K2 Lamp Protect. However, to see proper results, the whole preparation process must be done. I first sanded with sandpapers (400 dry - if the headlights are not too bad, go straight to 600 and then with soapy water 600, 800, 1000, 1500, 2000, 3000), cleaning and drying at each change to see if the sanding was even. I applied two coats of polish (1-2 minutes each) on each headlight. Attention: it needs moderate to light pressure and you should not keep it fixed in one spot for too long so as not to heat up the plastic. It spread the material evenly and after two whole cars it suffered absolutely nothing!

The important thing about this is that it does not deform under pressure, unlike other similarly low-cost ones. In terms of results, satisfactory.

I really didn't expect it to have this result, of course it wasn't too burnt but the result for me is stunning. A piece of 2000 sandpaper rubbing with water at the same time. Drying, applying the polish, good wiping and then the protective, I think the result shows in the photos. 5 Stars

Like all K2 products, this one also restored my headlights to a smart yellow color without having to sand them with sandpaper. Just this and the K2 cream, the whole process took 15 minutes for both headlights! Amazing product for anyone who wants to do it themselves, it's worth it!