Package Included:<br />- 1 x Magnetic Brush<br /><br />Specifications:<br />- Small: For fish tanks which glass thickness below 4mm<br />- Medium: For fish tanks which glass thickness below 6mm<br />- Large: For fish tanks which glass thickness below 10mm<br />- Material: Plastic+Magnet<br />- Color: Blue+White<br /><br />Features:<br />- Good absorb ability and powerful magnetic attraction.<br />- Effectively clean the fish tank｣ｬ provide a fresh environment for fish.<br />- The inside brush will not sink into the farthest depths of fish tank as it is floating.<br />- As you move the outer magnet｣ｬ the inside magnet follows｣ｬ hence cleans the glass.