Lily crystal tube with surface skimmer made from high-quality quartz glass. The transparency of the glass ensures a stunning appearance for the planted aquarium. The 360-degree water flow design allows water to flow from all directions without blockage and provides ease of cleaning. Surface dirt is effectively removed by the surface skimmer. The package includes 1 × crystal glass surface skimmer, 1 × crystal glass flow tube, 2 × acrylic holders.