A great product for cleaning computer. Its two brushes at two ends can be used to clean the monitor and keyboard. The small strands of the small brush are extremely versatile in reaching the cracks between the keyboard keys and the mouse buttons.The larger brush has soft micro file strands used to clear dust and static electricity on the monitor and the main CPU. The small strands of the small brush are extremely versatile in reaching the cracks between the keyboard keys and the mouse buttons. The larger brush has soft microfiber strands used to clear dust on the monitor and the main CPU.