Replacement Felt Pad B fits the outer magnet for Mighty Magnet models FF-3, F-4, FF-4, F-5, FF-5, F-6, FF-6, F-7, FF-7, FISH-3, FISH-4 & FISH-6.

Dimensions 2-3/4″ x  5-1/2″. Actual product and color may differ from picture.

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