Bird T-Perch with Optional Table Stand Base The T-perch is designed for non-contact, safe pick-ups of birds that may display territorial aggression; for example, when taking pet birds out of their cages or from their play gyms; or to facilitate bonding by carrying a pet bird around in a way that is comfortable for the pet and reduces the risk of being bitten. Perfect for spending quality time with birds that still require taming / socializing, or to offer your pet a comfortable perch that you can easily carry around with you. The sizes are somewhat fluid and may also depend on your pets claw strength. Birds with balance problems would benefit from having a smaller perch. We have African Greys and Amazons using Small perches without any problems at all. For the largest parrots, the Large is definitely recommended, and small parrots  such as cockatiels & lovebirds  would definitely be more comfortable with a Small as opposed to a Medium. But most other birds can use 2 different sizes without a problem. Conures and birds of that size could easily use Smalls as well as Mediums. Small (~1/2" perch diameter) is suitable for: parakeets, parrotlets, lovebirds, cockatiels up to the size of conures and MINI-macaws. PVC Perch is ~10.5 inches long and the handle is about 11.5 inches long. Optional Table Stand Base adds about 5 inches to height.