Perfect Hay Feeder - This is a feeder for small animals such as guinea pigs, rabbits, etc. Humanized Design - The edge of the bottom layer is covered with stainless steel, which effectively prevents small animals from biting it. Also, the grass holder is detachable so you can easily clean it. Safer Raw Materials - This hay feeder uses high-quality materials to ensure your pet baby has a durable and long-lasting feeding bowl. Convenient Installation - The back latch of the charger has a fixed Phillips screw design, so you can easily connect it to a metal cage and adjust its height freely. No tools required. The diameter of the cage wire mustbe smaller than 3.9mm/0.15in. Dimensions - L * H * W 5.9 * 7.1 * 5.9 inch / 15 * 18 * 15 cm Ideal for rabbits, chinchillas, guinea pigs, galesaurs or other small animals