Quantity:1 Feature:1.Surface skimmer removes surface scum effectively. More easily and help photosynthesis of water plants.2.360-degree inflow design allows water flows get through from all directions without clogging and provides convenience in cleaning.3.Acrylic Surface Skimmer, would not hurt fish and shrimp. The surface skimmer efficiently skims dissolved organics and other waste material from the waters surface of your aquarium.4.Skimmer Pipe out diameter 17mm;inner diameter 13mm.Specifications:Material: Acrylic Color: TransparentSie:Scroll flower basket diameter 4.0cm x height 12cm/1.6x4.7 inchPackage Included:1 x Aquarium Oil SkimmerNote:1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow 1-2cm slight dimension difference due to different manual measurement. 360 Water Inlet Design: the surface skimmer effectively removes the surface floats without blocking. Material: Highly transparent acrylic material, easy to clean Usage: Remove the oil film of the fish tank to restore the water quality of the fish tank. Size: Vortex flower basket diameter 4.0cmx height 12cm/1.6x4.7 int. SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please feel free to contact us.We will provide after-sales service until you are satisfied. See more product details 360 Water Inlet Design: the surface skimmer effectively removes the surface floats without blocking. Material: Highly transparent acrylic material, easy to clean Usage: Remove the oil film of the fish tank to restore the water quality of the fish tank. Size: Vortex flower basket diameter 4.0cmx height 12cm/1.6x4.7 int. SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please feel free to contact us.We will provide after-sales service until you are satisfied.