EZ FEEDER allows you to easily defrost & feed your aquariums inhabitants in a convenient, secure location. EZ FEEDER is equipped with an o-ring sealed lid & strong anti-slip rubber padded magnet that holds max tank thickness up to 1/2” (12.5 mm). The sealed lid allows you to fully submerge EZ FEEDER for a slow release of food and allows bottom dwelling fish to feed easily. This simple but amazing product is constructed of high quality clear over neon orange colored acrylic.