Features: Keep your aquariums water clean with the aquariums skimmer cleaning fish tank accessories. Made of quality plastic material, this skimmer features a rotating design that effectively removes oil film from the water surface. Wonderful for fish tank enthusiasts and fish owner who want to maintain a healthy environment for their aquatical pet. Use it in your home or office aquariums to keep the water clean and free of debris, ensuring your fish and plant alive. With its easy-to-use design and durable construction, this skimmer is a must own accessory for any aquariums enthusiasts. Specifications: Material: Plastic Size: Approx. 20mm/ 0.78in, 25mm/ 0.98in Type: 1, 2, 3 Package Includes: 1pc Fish Tank Oil Flim Remover Device note: 1: Please allow 1-2cms errors due to manual measurement, make sure that you do not mind before you order. 2: Due to the difference between different monitors, the picture may not reflect the actual color of the item.