Acrylic Material:Manual Process:Red white， blue， Color:8.5*6CM Size:Package: 1 PCSpecial note: this does not have time function， baby eruption time is about a minute.Design idea:Volcanic eruption (eruption volcanic) is a kind of peculiar geological phenomenon. It is a kind of manifestation of the crustal movement， and it is the release of the magma and other materials in a short time. Because of a large number of volatile components in magma， combined with overburden pressure， so that these volatile dissolved in the magma can not overflow， when the magma rises near the surface， the pressure decreases， the volatile is released， so the formation of volcanic eruptions.In order to create such as volcano when the flame of the scene， we use the characteristics of oil droplets and pigment， combined with oil Peak Volcano shape， create volcano hourglass