Assemble this cardboard tree, place it on the magic solution dish and watch how the crystals begin to appear in three hours, after only 10 hours the tree will look marvelously covered. The beautiful crystals will last a long time if treated gently, if you keep the solution at room temperature or slightly warmer in the 10 first hours, really robust crystals can be form, don't place near any heat source or in sunlight, to avoid a quick evaporation! The solution is non-toxic, but is recommended that children under 10 have adult supervision.