Crystal lily pipe with surface skimmer is made of high quality glass. Glass transparency gives superb appearance to the planted aquarium. 360-degree inflow design allows water flows get through from all directions without clogging and provides convenience in cleaning. The surface dirt's are effectively removed by the surface skimmer. The package includes 1 x Crystal glass surface skimmer inflow, 1 x Crystal glass outflow pipe, 2 x Acrylic holders.