Features: The bowl is made of stainless steel, non-toxic, odorless and bacteria-free. Can be used as a food bowl or as a water bowl with large opening design for easy feeding of birds. Easy to install snap design to match most bird cages. This bird feeder cup has two parts, one part is the holder and the other part is the stainless steel bowl, easy to install and long lasting, easy to remove from the holder. The bird cup is designed with strong clips to secure it to the side of the bird cage to prevent birds from accidentally tipping over the food/water bowl. Easy to clean, no need to waste time on cleaning. Ideal not only for birds such as parrots, pigeons, macaws, African grey parrots, budgies, cockatoos, etc., but also for many small animals such as hamsters, gerbils, rabbits, chinchillas, guinea pigs, etc. Specification: Color: silver Material: stainless steel Diameter: 5.5cm6.5cm10cm(optional) Package size: 6.5 * 5.5 * 4.5cm Package weight: 5.5cm:76g ; 6.5cm:90g ; 10cm:140g