Package Dimensions:15.7 x 14.4 x 4.2 cm; 140 Grams Size:S Volume:1 Cubic Centimetres Number of Items:1 Quantity:1 Special features:Non Slip batteries required:No Batteries Included:No Item Weight:140 g This magnetic fish tank cleaner helps clean glass by magnetizing from an outside pad to the inner glass cleaner part, quickly and easily cleans away algae growth to make your aquarium stays healthy and looks its best. About this item Non-slip Handshake, Ergonomic Design, Comfortable Grip, Non-slip, Easy to Slide Freely,Separated and Automatically Floated, the Two Poles Were Separated and Automatically Floated on the Water Surface This Fish Tank Glass Cleaner Is Suitable For Freshwater and Saltwater Aquariums. Please Choose the Size According to the Thickness of the Fish Tank Glass. S Is Suitable For Fish Tanks With A Thickness of 3-5mm. The L Size Is Suitable For Fish Tanks With A Thickness of 4-10mm. Detachable and Replaceable Algae Scraping Head, Carbon Fiber Cutter Head, Easy to Remove All Kinds of Algae Self-Floating Design: The Magnetic Brush Will Not Sink to the Bottom of the Aquarium When Detached, It Will Float so You Can Easily Retrieve It Without Getting Your Hands Wet Or Disturbing the Fish. When Not Use, It Can Be Directly Attached to the Glass Without Additional Storage. 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 Non-slip Handshake, Ergonomic Design, Comfortable Grip, Non-slip, Easy to Slide Freely,Separated and Automatically Floated, the Two Poles Were Separated and Automatically Floated on the Water Surface This Fish Tank Glass Cleaner Is Suitable For Freshwater and Saltwater Aquariums. Please Choose the Size According to the Thickness of the Fish Tank Glass. S Is Suitable For Fish Tanks With A Thickness of 3-5mm. The L Size Is Suitable For Fish Tanks With A Thickness of 4-10mm. Detachable and Replaceable Algae Scraping Head, Carbon Fiber Cutter Head, Easy to Remove All Kinds of Algae Self-Floating Design: The Magnetic Brush Will Not Sink to the Bottom of the Aquarium When Detached, It Will Float so You Can Easily Retrieve It Without Getting Your Hands Wet Or Disturbing the Fish. When Not Use, It Can Be Directly Attached to the Glass Without Additional Storage. 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.