These swabs, with their unique fabric folding system, are specially tailored for cleaning your delicate sensor without leaving streaks, pooling or abrasions. 12 per pack. Compatible with: * VDust Plus™ * Sensor Clean™ * Smear Away™ The patented mini-channel, with contour, provides an even saturation of the paddles surface while preventing pooling & vertical flow at the edge. This reduces streaks associated with traditional flat surface paddles. The mini-channels also provide the extra reservoir to absorb the excessive liquid & prolonging the moisture life of the swab during the cleaning process. Cautionary Note Visibledust sensor cleaning solutions & swabs are calibrated to work together to produce optimal & safe results. Please DO NOT USE alternative solutions with our swab. A simple grain of quartz which is found in cheaper solutions are enough to produce an expensive scratch on the low pass filter. Our solutions are manufactured to the highest standard of quality that is practiced in pharmaceutical industries. Visibledust solutions are calibrated for NORMAL evaporative rates: 1. to keep the swab moist at all time to reduce the risk of scratch 2. to increase the cleaning power, less swabbing more economical 3. to reduce friction by being moist all time during swabbing The potential risk of FAST evaporative solutions used as sensor cleaning are the following: 1. an increase in the risk of damage & stress to sensor coating by using premature dry swab 2. a great reduction in cleaning power by shortening the contact time between contaminants & solution due to the increased evaporation rate of the solution 3. increase in friction by using a premature drying swab, resulting in static charge build up leading to an even greater dust accumulation on the sensor Our cleaning liquids are intended to be placed on the swab first, so the concern for liquid seeping through the sensor is not valid or accurate. On the other h&, the disadvantages of a generic brand or FAST evaporative liquid used for sensor cleaning may in fact may casue damage to the sensor by requiring repeat swabbing & is not recommended.