1Strong magnetic brush, strong magnetic attraction, deep decontamination, brush and scrape synchronization. 2Selffloating design, no need to wet hands, float on the water when fall off, convenient for picking up and has a more userfriendly design. 3No damage to fish tank, wavelike design scraper, which can clean the inner wall strongly, and remove the micro marks at the same time. 4Soft grip ring, comfortable grip, easy to wipe, farewell to slippery hands for a long time to hold without getting tired. 5Algae scraper, doublesided cleaning does not leave dead corners, removes algae and stubborn stains in the fish tank.