Turn your pond into a lagoon with solar critters. Personally, I don't have a need for this solar hippo in my backyard, but I do find it appealing and can imagine it in neighboring backyards. At night his eyes glow and light up to 8 hours. The hippo has a weatherproofed hand painted resin construction and is more realistic looking than its previous version. It also has a flat bottom so it can be placed on the grass as well as a pond. It is lightweight and is 21" long.