Petzilla Magnetic Algae Scraper， Aquarium Cleaning Scrubber for Fish Tank</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Super strong magnets for use with 8mm glass thickness.</li><li>Complete cleaning algae and scum without ever getting your hands wet!</li><li>Strong magnetic forces cause the inside cleaning brush to follow the outside handle.</li><li>Just wipe the outside， and the inside is clean!</li><li>4 sizes optional. Check the size chart in the images and choose the one you need.</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41NcH0IN0zL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/61LmCtUiErL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/61X6oWkqnML.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41vlb123eFL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/61zFISRoAML.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51WT8G9fPSL.jpg' noproxy></br>