The large black Rocket Air Blaster Dust-Removal Tool from Giottos safely blows clean air to eliminate dust from sensitive or hard-to-reach surfaces, such as those on lenses, cameras, filters, and keyboards. It is crafted from durable, natural, and environmentally-friendly silicone rubber that offers a virtually instantaneous rebound for a nearly continuous stream of clean air. Its nozzle can be removed for cleaning and is 2.25" long. It features an opening designed to eliminate whistling. A one-way valve on the bottom brings in clean air and does not redistribute dust. Additionally, the blaster stands up on its own and can be set on a flat surface without rolling around.