Living room decoration dynamic gifts oil leak square color liquid droplets drip hourglass staircase DecorationAncient hourglass timer function is used ， and now oil spills can serve as leisure or work for children timing tool .This makes the child more receptive to mating ， leaving the child has a more intuitive sense of time， the children made ​​the futureShow a great advantage .Placed on the desk is also very stylish， all right， when droplets of water slowly over the run flow .Every drop like a pile of past experience ， with the flow of the oil droplets in mind one circulation