Hourglass polygonal 3d model. Hourglass is an instrument for measuring time. Its name derives from the greek and means "to measure the water." Only later was used the sand whose exact name was clepsamia and no more clepsydra. The original max 9 file Vray and standard materials versions. Comes with a HDRI and honix map. Other formats available: cinema 4d, 3ds and obj.