Saim Magnetic Aquarium Glass Cleaner， Aquatic Algae Cleaning Magnet</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Can be used on glass or acrylic tanks up to 0.12" - 0.23" (3 - 6mm) thickness</li><li>Strong magnetic forces cause the inside cleaning brush to follow the outside handle. Just wipe the outside， and the inside is cleaned!</li><li>Dimensions: 1.7" x 1.7" x 1.1"/4.4x4.4x2.95cm(LxWxH); great for Mini to Small aquariums</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/41mJvF5PItL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41DLD-L06eL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/412S8-9yZxL.jpg' noproxy></br>