Neewer Optical Sensor Cleaning Kit for Nikon Canon Sony Pentax Olympus and Other DSLR Cameras,Includes(1) Dust-Sticking Bar+(1) Viscous Cleaning Paper Complete safe. Does not leave any marks and does not scratch. Dust-sticking Gel Bar is used for cleaning optical sensor and can be used till the dust-sticking paper is used up completely. The high- viscosity rubber bar head is convenient for sticking dust,particles and oil pollution and can effectively clean DSLR optical sensor,optical lens and other optical devices The cleaning paper is coated with non-shedding colloid material having viscidity higher than that of head of dust-sticking bar and is used for removing pollution stuck at the bottom of the rubber head of the dust-sticking bar.Please tear one piece of paper at one time for use. The kit includes:Dust-sticking bar+Viscous cleaning paper.