Size: About 15.5*15.5*18.8cm/6.1*6.1*7.4in for rabbits, chinchillas, guinea pigs, hamster, squirrel or other small animals. Hay Feeder: This is a feeder designed for small animals. Keep grass and feed at the same time and keep it dry and clean. The upper layer is the grass frame and the lower layer is the feed bowl. Environmentally Friendly: Made of natural wooden material. To make sure your pet baby has a non-toxic, , long-lasting feeder. Easy to Install: How to use: Place it on the floor or screw it to the cage. The rear lock of the feeder is fixed and can be easily installed on the cage. The height can be adjusted freely, no tools are needed, and the installation is convenient. For All Cages: It is recommended to pull the hay through the hole in order to make the small animals eat more easily. The bottom has a feed trough to prevent exposure and keep the cage clean.