●This is a Floating Magnet Fish Tank Cleaner,unique humanized handle design,make it easier to operate and won't sink. Double cleaning surface cleanse the exterior and interior of the fish tank glass,wipe it and be clean. With the Scraper,the seaweed and dirt in the fish tank can be better removed. Give you a clean and beautiful ornamental aquarium fish tank. ●Friendly Note - When the scraper arrive the bottom of fish tank, be careful not to carry with sand to avoid scratching the glass. - Please keep the algae scraper away from the high temperature place, as you know high temperature will eliminate the magnetism. - Please stay away from all kinds of fear of magnetic products, like monitors, televisions, watches, magnetic cards, etc. - Please do not put the cleaner into seawater for a long time to avoid being corroded when not in use. - This product has a strong suction,don't let children play it, avoid clipping fingers. Specification: Item Type: Fish Tank Clean Brush Material: Plastic + Magnet Color: Blue + White Optional Type: Small Size, Medium Size, Large Size Type Size(cm/inch) Maximum Thickness Aquarium Length (cm/inch) Large 10.5 * 5.6 * 9/4.1 * 2.2 * 3.5 10mm or Less/0.4inch 60-150 / 23.6-59.1 Medium 9.6 * 5 * 8/ 3.8 * 2.0 * 3.1 8mm or Less/0.3inch 40-80 / 15.7-31.5 Small 7 * 3.8 * 5.7/ 2.8 * 1.5 * 2.2 6mm or Less/0.2inch 40cm or Less / 15.7inch or Less Package Weight: Approx. 100-262g Package List: 1 * Fish Tank Clean Brush