The Mionix Ensis 320 is made of forged 1mm Aluminum alloy for a strong but lightweight construction. The surface has been treated with a very low data loss treatment, which gives a matt black glow. With 1mm natural rubber underside provides non-slip grip whilst still maintaining a very low overall profile of 2mm. The Ensis 320 was designed with our in-house S.Q.A.T. technology (10/10) that tests the data loss of the surface, many months of testing has been carried out to ensure that this aluminum mouse pad has an extremely low data loss whilst still maintaining ultra low friction glide.