The recommended cage spacing is 3-6 cm (1.2-2.4 inches). Please carefully measure the cage spacing to ensure compatibility before purchasing, as improper spacing may prevent proper installation. Perfect size for small animal cages: food feeder measures 10.8 x 16 x 22 cm and water dispenser measures 10 x 15 x 20 cm, with a combined capacity of up to 800 ml. Bowls with diameters of 4.2 inches and 3.3 inches are ideal for small animals such as rabbits, chinchillas, guinea pigs, hedgehogs, and ferrets. Hanging cage design maximizes space utilization and is specifically designed for pets kept in enclosures. Food and water can be refilled externally without disassembling the unit, ensuring convenience, cleanliness, and hygiene. Constructed from safe, durable polypropylene material that withstands high-temperature washing. The dispenser can be disassembled into smaller components for thorough cleaning and disinfection, then easily reassembled for efficient pet care. Elevated hanging design helps maintain a comfortable feeding and drinking position, reducing neck strain caused by awkward head angles. Features secure knobs that fit most standard small pet cages, allowing installation from inside or outside the enclosure as needed. With a total capacity of 1 liter (35 oz), the feeder and water dispenser provide sufficient food and water supply for 3-5 days, making it convenient when you're busy or away. Equipped with an automatic gravity-fed system that continuously supplies fresh water and dry food without requiring electricity, offering an eco-friendly solution for pet hydration and nutrition. Features an improved food preservation design that helps keep pet food fresh and protected from contamination, supporting overall pet health and well-being.