ESK® Sampling Kits are ideal for on-the-spot environmental sampling. Each kit is sterile and packaged in an easy-to-open outer wrapper. 10ml fill with Puritan’s high-quality polyester swab. The swab is securely attached to the cap, making a convenient “handle” for great control when sampling. The smaller swab makes it a great choice for surface testing of hard-to-reach places. Once finished, simply place the swab in the tube and cap tightly for transportation to the lab.