I love this kit! I have used filters from K&F Concept for years and I always appreciate their quality. This one includes several useful filters, and lens caps. I love having extra lens caps, since they are so easy to misplace or drop. I use UV filters to protect my lenses. I have them on all my lenses because I don't want to scratch the glass. The CPL filter is my favorite, by far. I love using it for increasing contrast in cloud photos. And when I photograph water, I use it to minimize glare. I've been trying to photograph migrating salmon and the glare often interferes with the photo. This filter is the answer to that. In my experience, all the filters I've tested from K&F Concept are high quality. They are made of materials and glass of the best quality. The threads are always perfectly cut so that they go right onto my lenses with no issues. You also get everything you need to maintain them. The kit comes with the plastic storage cases. You also get microfiber cleaning cloths. There are even lanyards for keeping the lens covers from getting lost! This kit is a great value and you can't go wrong purchasing this one.