This is a sound installation located in the small workshop in the studio at the university. I found a ventilation fan there and thought it was like a tab of cans called "easy open ends". In multi layered space, the fan works as a mediator connecting inner space and outer environment, generating a delicate movement by the wind out- side. This mobilise a latex tube in the steel pipe, making a drone-like noise. Captured by a contact microphone attached to the pipe, the noise are amplified and vibrates the window frame of the building.