Pixel Ruboo strong silicone blower features a ergonomic design and feels really comfortable when in use. It"s very useful and easy to use for cleaning camera body, lens, LCD screen, laptop, keybord and even blow dust from CCD sensor.It"s made of high quality silicone material which provides a very nice grip when holding it. The blower is 17.3cm in height and its diameter is about 5.2cm, the mouthpiece is about 8.5cm long so it"s very easy to remove the dust that"s normally hard to reach.The Ruboo strong blower has a on/off switch. To switch the blower on simply pull up the mouthpiece. This is a very useful and clever design to avoid dust going into the blower when not in use. The bottom of the blower also has a reverse valve design to ensure more powerful dust cleaning.