The aquarium brush made of high quality sponge, could remove the algae quickly and effectively, keep your fish tank a clean environment The brush handle made of premium plastic, sturdy and durable, with non-slip handle surface, make this clean work more easily Designed with a hole on the end of the handle, more convenient for you to hanging and store This algae scraper brush suitable for glass fish tank but not suitable for acrylic and plastic fish tank Dimension of sponge:3”x2.5”; Length of handle:12.5”