These are 25W/50W/100W Submersible Aquarium Water Heaters. Perfect for keeping and raising many species of tropical fish, shrimp, aquatic frogs, tadpoles, etc. Made with a double seal water proof design to ensure water cannot leak in when the whole body is completely submerged in water. Included are an end cap and 2 suction cups and brackets that attach well to glass and plastic.
Specifications:
Material - Plastic/Glass