Features:1. Material improvement: the new acrylic is more popular and has better flatness.2. Microporous atomization without immersion: a new generation of finers has developed a new ceramic stone. It produces smaller microbubbles to improve the distribution of carbon dioxide.3. High appearance, small size and delicate bubbles: the new generation of the TWINSTAR CO2 refiner provides an atomization effect while reducing the volume, making it feel smaller in the aquarium.4. Upgrade easy-to-install suction cups: The more beautiful and integrated installation of the suction cup buckle is more stable and the volume is greatly reduced. Description: The main body is made of imported acrylic material, it is crystal clear and translucent like the crystal position. The thinning sheet is produced by the perfect nano-mbk process, which brings the first-class fruit thinning effect. The extra-long, transparent air supply makes the posture attached to the aquarium better. Perfection not only belongs to him, but it also belongs to you. Specifications:Material: AcrylicProduct Category: Other Aquarium ProductsRefined Sheet Size: M-19mm, L-24mm (Optional)Suitable Aquarium Size: M-45-90cm, L-60-150cmPackage Included:1*RefinerNotes:1. Please allow 0-1 inch error due to manual measurement. Thank you for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object.