[TIPS]: The recommended cage spacing is 3-6cm(1.2-2.4inch),Please carefully measure the cage spacing and make sure it can be used before purchasing. This will reduce the problem that the cage spacing is too small and the feeder cannot be used [Profect Size For Cage]: 10.8*16*22cm Food Feeder And 10*15*20cm Water Dispenser Can Hold Up To 800ml Water. Bowls With 4.2''And 3.3'' In Diameter Are Perfect Size For Small Animals, Such As Rabbit, Chinchilla, Guinea Pig, Hedgehog, And Ferret. [Knob Hanging Cage Design]:The hanging cage design makes good use of space. It is specially designed for small pets locked in the cage. When adding food and water, it does not need to be disassembled. It can be added outside, which is clean and sanitary [Safe Material]: These Dog Food Dispensers Are Made Of Polypropylene, Which Can Be Washed At High Temperatures.It can be disassembled into small parts for disinfection and cleaning. It is also very convenient to install and efficiently help you take care of your lovely pets [Hanging Design]: Hanging the food and water dispenser at a height ,to prevent neck discomfort caused by pets drinking water with their heads up or down. Buttons are designed to fit most small pet cages and fit inside and outside of the cage as needed. [Suitable Capacity]The capacity of our feeder and water dispenser is 1L (35oz), which can provide food for your little pets for 3-5 days. When you are busy or go out, don't worry about starving your lovely pets [Automatic Gravity Supply]:This feeder adopt natural gravity supply system,keep providing fresh water and plenty of food, no electricity required, Eco-friendly, [Food Preservation Design] Our Feeder And Water Dispenser Our Feeder Has A New Food Preservation Design, Which Can Keep The Pet's Food Fresh And Protect The Pet's Health