Unlike the traditional fiber-style cotton or Dacron tipped swabs, PUR-Blue™ swab samplers possess a medical grade polyurethane foam tip that resists tearing and fraying, making it the ideal tool for sampling rough surfaces. The strong and flexible shaft, combined with the easy-to-grip large cap, allows the user to press firmly and vigorously scrub surfaces, disrupting biofilms and lift organisms during sample collection. PUR-Blue swabs can be used with a telescoping extension pole to safely sample those hard-to-reach areas, making it a highly adaptable universal sampling device.