Serious alternative to the usual big brands that offer swabs of packaging in small quantities and at rates that sobering, given the simplicity of these products: a plastic stick and a cloth attached to the end ... Because even with very rigorous demands absolute cleanliness of the swabs is very over priced. Those in question here are fairly economical, high quality, and there are many in the box. One important detail concerning the full-size version of (or FX 24X36) sensors, cutting these swabs to their end (pallet) is quite wide on a substantial height (see the photo on the box). On some full-format cameras such as Nikon D600, this cut does not allow horizontal sensor cleaning. It must be done vertically twice ... which is not a problem particular efficiency. Excellent product that can be combined with liquid cleansers problem without market. Very efficient and more economical than conventional kits.