Constructed from high-quality compressed open-cell polyurethane foam securely bonded to a polystyrene shaft, these swabs are designed for delicate and precise cleaning tasks without leaving residues. These versatile swabs are suitable for a wide range of applications, including cleaning keyboards, phones, printer heads, and other intricate components, helping maintain optimal device performance. Ideal for sensitive equipment, the swabs are compatible with cleaning solvents and well-suited for use with inkjet printers, laser printers, optical microscopes, and various laboratory instruments. They are also useful for household maintenance, effectively reaching narrow and hard-to-access areas in air conditioning vents, kitchen appliances, and automobiles. Color: Black Material: Plastic + Sponge Size: Approximately 130 x 15 mm Package Contents: 200 x Cleaning Swabs Note: The package includes only the items listed above; other products are not included. Note: Slight color variations may occur due to lighting and display differences. Measurement error is +/- 1-3 cm.