This CONSTIX® cleanroom swab is made of high quality, long staple-length cotton, tightly wrapped and shaped on both ends of a high strength, wound paper handle. The heads are very tightly wrapped and shaped using methyl-cellulose binder which minimizes fiber shedding, while maintaining low levels of extractable residue. The high quality cotton fibers provide excellent particle entrapment and retention, as well as exceptional absorbency of most solvents and solutions. CONSTIX® cleanroom cotton swabs are absorbent to most common solvents including isopropyl alcohol, acetone, and is ideal for use with aqueous based solutions. For use in some of the most critical applications, including disk drive manufacturing and high-level optical surfaces. Dimensions and Style: 0.08-Inch Diameter x 0.3-Inch Hard Sharp Pointed Tip Double-Ended. Total Length: 3-Inch (7.6cm). Handle Material: Wound Paper. 25/Pack; 200 Packs/Case. Contec #: SC-4.