This CONSTIX® cleanroom swab is a sealed polyester swab consisting of 100% knit polyester fabric thermally bonded to a Delrin® (acetal) handle. The swab contains no adhesives or binders. The swab head is made from cleanroom wiper polyester fabric. The acetal handle provides good rigidity and strength that enables access to very small areas and components. The sealed polyester head provides the lowest contamination risk of any other type of swab, while being very durable and absorbent. Swab features the lowest particulate and residue levels. Resistant to most solvents and many acids and bases. Head Size and Style: 0.08-Inch x 0.4-Inch (0.2 x 1.0cm) Nonwoven Polyester. Handle: 0.09-Inch (0.23cm) Diameter Delrin®. Total Length: 3-Inch (7.6cm). 100/Pack; 5 Packs/Case. Contec #: SP-7.