Cleaning Swab Foam Tip Sponge Stick for Inkjet Printer Optics describe: Material: Head: Polyester Rod: PP Color: as pictured size: Head length: 25mm/0.98" Rod diameter: 5.8mm Overall length: 122mm What's In The Package: 100 X Cleaning Swabs Other accessories are not included feature: 1. Micro-machine cleaning. 2. Remove hard contaminants, circuit boards, optical lenses and other electronic products. 3. Remove contamination from electrostatic sensitive components (polypropylene rod with anti-static function). 4. Can effectively clean up small and difficult to locate. 5. Remove effluent residue and excess material. notes: 1. Please check the size details carefully before buying 2. Due to the different computer display colors, the color may be slightly different from the picture above, thank you for your understanding 3. Manual measurement, please allow 2-4mm error