Swab comes from its unique letter "V" shape: The narrower edge of the V shaped swab minimizes the contact between the the swab and the chamber wall. This ultimately eliminates the lint produced inside the camera eventually from falling on the sensor * Better maneuverability and easy swabbing while inside the chamber. Due to its triangular form The Vswab (patent pending) applies equal pressure to the edge of the swab pad. This brings a more homogeneous swabbing motion and less streaking along the edges