Photographic Solutions Swab Ultra Kit (Type 2) for DX or APS-C SensorsSensor Swab Ultra, Like Its Predecessor Sensor Swab, Is Designed for Cleaning Ccd Chips and Other Delicate or Hard to Reach Optical and Imaging Surfaces. Clean Room Manufactured and Sealed, These Swabs Are the Ultimate in Purity. Sensor Swab Ultra Is More Absorbent and Does Not S..