Wood Swing for Pet Syrian Hamster Gerbil Rat Mouse Chinchillas Guinea Pig Small Animal Cage Hammock Toy Size: 9* 7cm. Made of Acrylic , safe for your small pets. Suit for rats, hamster, squirrel, chinchillas ,bird,parrot and other small animals. An ideal place designed for your little friends to play and climb, easy install in the cage. Note: When you get the item,please tear off the protective film of the acrylic,then put them together.