UES VSGO Cleopatra Air Blower and Dust Blaster for Cleaning Camera Lens, Sensor, Screen and Other Electronics One-piece integrated molding prevents air leaking out and also blocks dust and other particle from entering the blower Dimension: 5 inches long and 2 inch wide Instant rebound of bulb pressure One way valve brings clean air and does not re-distribute the dust Made from high grade silicon rubber  soft and durable