Four brushes are included: 3 anti-static nylon brushes and 1 camera cleaning brush. Four brushes provide easy and thorough cleaning, with different sizes to reach areas that are difficult to clean. Use them according to your cleaning needs. Anti-static cleaning brushes: Suitable for keyboards, computer mainframes, and other electronics. This set includes brushes that are ideal for cleaning machines, computers, circuit boards, keyboards, small gaps, fans, gaps and windows. The anti-static design helps protect sensitive components during cleaning. Ergonomic design: The brush length is no more than 15 cm, offering a flexible and portable tool. It can reach areas that ordinary brushes cannot, and it is gentle on your equipment. Materials and durability: Made of high quality PA and PP with a durable plastic handle, compact for storage. The bristles are designed to clean without damaging electronic devices. The brushes offer high temperature resistance, durability, and anti-static properties for long-term use. Use scenarios: - Cleaning a keyboard, USB ports, and other peripherals to remove dust and debris without scratching surfaces. - Cleaning inside a computer case, including boards, fans, and small gaps, where precision tools are needed. - Cleaning camera equipment, such as around the camera body, lens mount, and small crevices, where a delicate brush is beneficial.