This white, mitt-shaped algae remover effortlessly wipes away unsightly algae from glass and acrylic surfaces. It can also be used for removing algae from fixtures, decorations, pumps, and other accessories showing signs of algae growth. Thanks to the unique shape that contours to your hand, the Algae Mitt can easily get to those hard-to-reach places. One size fits all. Effortlessly wipes away unsightly algae. Effective on both glass and acrylic surfaces.