Size: 7.5" x 3.9" x 1.4" (L x W x H), see picture 2 for details, thanks ~ Versatile It can be used with birdbath and bowl of bird, very practical. You can install the birdbath with screws in any cage. The product is cleverly designed and equipped with a small mirror in the bathtub, which can make the bird more fun to bathe. The water bath is good for the health of the birds. It not only removes feather dust and parasites, but also moisturizes the skin and helps birds dissipate heat. Simply hang on the cage door and remove it for cleaning when the bath is done. It makes bathing the bird more fun. Stable and hard to knock over for less damage.