Easy and effective cleaning of aquarium panes: blunt spare blades for Floaty Blade L and XL to tackle stubborn deposits Easy to use: float the internal element on the water at the edge of the aquarium tank, the external element will draw the internal element. Direct the magnet from the outside. Clean glass pane with circular movements No risk of injury because the blades are blunt Suitable for Floaty Blade L and XL Contents: 1 x spare blades for Floaty Blade, Blade 2 x (Floaty L/XL)