From Classic's range of Quality Feeding Dishes, Hook On Coop Cups each have a single strong wire bracket which simply hooks onto the bars of your pets cage or pen and the dish simply slots in for ease of filling and emptying. Dishes easily fit to most cages or pens and can be fixed at a height to suit your pet. Made from high quality, stay bright stainless steel which is hygienic and dishwasher safe, this dish will remain in good condition for many years. This small cup has a capacity of 300ml (100mm diameter) which is suited to many small pets.