Perfect Hay Feeder: This is a feeder designed for small animals like Guinea Pig Rabbit etc.The feeder' s upper layer is a grass rack and the lower layer is a food bowl ideal for rabbits chinchillas guinea pigs or other small animals Humanized Design: The edge of its lower layer is covered by stainless steel which effectively prevents small animals from biting it. Also the grass rack is removable so that you can easily clean it Safer Raw Materials: This hay feeder uses high quality material to ensure your pet baby has a durable long-lasting feeder Convenient Installation: The feeders back lock adopts cross screw fixed design so that you can easily connect it to a wire cage and freely adjust its height. No tool required. The diameter of the cage wire should be fewer than 3.9mm/0.15 inches Dimensions: L*H*W 5.9*7.1*5.9 inches / 15*18*15 cm. Ideal for rabbits chinchillas guinea pigs or other small animals