Sensor Swabs™ are designed for cleaning CCD chips & other delicate or hard to reach optical & imaging surfaces. Clean room manufactured & sealed, these swabs are the ultimate in purity. Sensor Swabs must be used with Eclipse or E2 Cleaning Fluid, available separately Size Two for Canon D30/D60/10D/20D/30D/40D /300D/350D/400D/450D, Nikon DX, Pentax, Sony