Liquid Filled coasters or Liquid Motion coasters are fun! Your customers will love watching the colors move. They will be fascinated watching two non-mixing colors avoid each other as the user mouses over them. The only aspect of this landscape that is not changing is the advertising message which remains prominently imprinted below or above the liquid. Images are protected with a sub-surface printing method so they last for years. Durable scratch resistant top. Choose shapes, designs and colors to suit your creative ideas. Size: 4" x 4".