Features: Cleaning sponge adopts advanced adsorption technology, which can adsorb small particles and dirt, and improve cleaning efficiency by 40%. This feature is particularly suitable for mobile phone repair professionals and electronic device enthusiasts, ensuring that no residues is left when repairing motherboards and chip. The cleaning cotton have undergone special processing, making it less prone to shedding fibers and leaving no sticker residues. After cleaning, the surfaces is smooth as new. Each sponge can be reused multiple times, reducing the frequency of replacement. This durability is very suitable for technicians who frequently perform maintenance work, helping save time and costs. Not only suitable for mobile phone motherboards, but also widely used for cleaning other electronic products such as computers, digital cameras, and household appliances. This feature makes it essential cleaning tool in both homes and workplaces, meeting the cleaning needs of different users in various occasions. This sponge doesnot contain harmful chemicals, ensuring that it is harmless to electronic devices and the environment during the cleaning process, and meets international environmental standard. Specifications: Component:Sponge Quantity: 500Pcs/Box Package Includes: 1Box Small Sponge note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.