Wide Range of Uses: For cleaning keyboards, inkjet print heads, sensors, optical equipment, cameras, and keyboards, great use for piezoelectric photo machine print nozzles, water-based and most solvent printhead. 50 pcs large foam head swabs can be used to clean sensitive equipment, such as inkjet print heads, sensors, optical equipment, cameras, hard drives, and can also be used to clean kitchen vents and car vents ect. This double-layer thickening foam tip swab has good solvent locking ability, can be used in conjunction with alcohol, compatible with most solvents, and good liquid absorption ability... Package Contents: 50 x Cleaning Swab Head length: 1 (26mm) Head width: 0., 6 (16mm) Handle Length: 4 (102mm) Total Swab Length: 5 (128mm) Material: Imported Sponge Color: Green+White Feature: There are 50 pieces in the bag, They are lightweight, simple and easy to use. Cleanroom Foam Tip Swabs - Precision and Efficiency 50 Pcs Foam Tip Cleaning Swab Sticks ZIZNBA 500 PCS 5.1" Square Rectangle Foam Cleaning Swab Sticks For Solvent Format Inkjet Printer Roland Optical Equipment-Orange 5 Inch Long Cleaning Swabs For Optics Easily disposable after usage. Free Returns ✓ Free Shipping✓. 50pcs 5.11" Square Rectangle Foam Cleaning Swab Sticks For Solvent Format Inkjet Printer Roland Optical Equipment (Blue Ease of Use: Clean hard and tight to reach areas easily and effectively. Package Contents: The package contains 50pcs rectangular cleaning cotton swabs.