The highly absorbent cotton swabs with self-adhesive backing are used for sampling of non-adhering surface contamination. They are suitable for dry or wet surfaces. As a result of the perforated, siliconized anti-adhesive paper, samplings are portioned acc. to your need. The swabs are easily moved off the paper. After sampling, they may be applied back to the paper and sent to the laboratory to be analized in monitors.