The Flipper Standard Float can be used on glass tanks up to 12mm (1/2") thickness.
The Flipper Nano Float can be used on glass tanks up to 6mm (1/4") thickness.
The Flipper Pico Float
PERFECT AQUARIUM CLEANER FOR SMALL FISH TANKS! Flipper Aquarium Products' Signature 2-in-1 MAGNETIC Scrubber Scraper in a FUN-SIZED design for glass & acrylic tanks up to 1/4" (6MM) thick. Keep your glass or acrylic aquarium fish tank looking as good as the day you bought it! Strong rare earth magnets make it easy to clean your tank without getting your hands wet!