GULFSTREAM TROPICAL MAG-FLOAT
Package Contains One Pad And One Felt For Mag-float Brand Aquarium Cleaners. Choose The One That Fits Your Size And Type Of Aquarium.sizes Available: Small 2-1/2" X 1-5/16" X 2-1/8", 30 Gallon Tank - 3/16". Medium 3-7/8" X 1-3/8" X 2-1/4", 125 Gallon Tank