This set of 10 sensor cleaning swabs is designed for use on APS-C sensor cameras, specifically DSLRs. The swabs are 16mm in size and made for cleaning sensors without leaving any residue. They are an ideal tool for maintaining the performance of your camera, especially if you use it frequently. The swabs are suitable for use on all brands of cameras and are made in China. The manufacturer warranty lasts for one month. Use these swabs to keep your camera's sensor clean and free from dust and debris.