This easy to use magnetic cleaner is a convenient tool to use without having to get your hands wet. Perfect for cleaning algae and scum off the sides of your aquarium. It has a floating design, meaning the brush will not sink into your fish tank. Strong magnets for use with varying glass thicknesses. | | * Easy to clean your aquarium | * When you move the outer magnet, the inside magnet follows | * Soft anti-slippery handle fits comfortably in your hand | * Not suitable for acrylic or low iron glass tanks | * Suitable for fish tanks with a length of 30 to 50cm | * Size: Medium