This special pad includes a plastic scraper that removes coralline algae in glass or acrylic tanks. Dozer Pad (E) fits the inner magnet for Mighty Magnet models FF-8, FF-10, FF-12, FF-14, F-16, and F-17.

Dimensions 6″ x  9″. Actual product and color may differ from picture. 

Always clean, inspect, and test products in an inconspicuous area of the aquarium.