Product features: five difficulties, one knife to solve all kinds of aquarium problems. Tank wall dirt, tank wall steam, fish tank too big to clean, hard to clean the inner wall, too dirty rag scrubbing. Seagrass scraper and sand leveler two in one, after putting on the protective cover, the seaweed scraper immediately turns into a sand leveler, one knife for two uses. Simple structure, easy to disassemble and clean. Two stainless steel screws secure it securely and nicely. Easy to disassemble for cleaning and replacement. Extended metal rod, detachable design, non-slip aluminum alloy handle, double-sided stainless steel blade. Steps of installation of the seaweed scraper: remove the head → take out the slot and the blade to be replaced → put the new blade into the slot → push the slot into the head, the combination is finished.