I bought one of these as a replacement for my Canon lens cap as they are, by all accounts, easier to get on and off the lens (particularly when using a hood) than Canon lens caps owing to the larger and more central area to pinch. Thought I'd go with a Nikon branded one partly for the irony of putting it on a Canon lens, but also in the hope that it would be of a higher quality than a non-branded version. Can't speak for the non-branded versions, but this one seems well built and I'm very pleased with it.