Zetek 6.378" Long 100pcs Foam Tip Cleaning Swabs Sponge Stick for Inkjet Printer, Printhead, Camera, Cleanroom, Optical Lens, Gun, Automotive Detailing, Optical Equipment &hellip; Foam Tip Width 0.204"(5.18mm) - Foam Tip Thickness 0.197"(5mm) - Foam Tip Length 0.669"(17mm) Swab measures 6.378 long Extended Reach Firearm Cleaning Swabs Anti-Static Foam Swabs for cleaning printer, computer, optical instrument camera lens, and all solvent printhead, such as Roland, Mimaki, Mutoh Epson printers. Constructed from compressed, 100 ppi(Z) open-cell polyurethane foam that is free from organic contaminants such as silicone, amide or DOP