Name： Computer keyboard cleaners powerful second-generation notebook USB keyboard brush cleaner Size： 10*4*3.5cm Materials: ABS + Electronic Components Colour： Multicolor random About The use of computers for a long time， it is inevitable that dust， especially the keyboard. Also easy to clean surface dirt， dust inside the keyboard difficult， and sometimes there will be a food debris， pet hair， etc.， really helpless. Think of us computer users in addition to accept the computer radiation， as well as endure the dust intrusion of bacteria breeding garbage ...... look at this new product now， since you no longer need to worry about the dust and dirt and ， refined workmanship compact， fully functional， as you imagine very thoughtful.