Birds have very sensitive foot pads and standing on the same size perch all the time can cause pressure sores. Give your bird a healthy alternative with the Corner Rest Shelf Bird Perch! The platform perch is also a good alternative for arthritic birds to help them rest more comfortably. The shelf is powder coated, very durable, and the grill design allows food and debris to fall through rather than building up on the shelf. Easy to clean and install (hardware included). Exterior Dimensions: 17" x 13" x 0.5".