A proper perch should have varying diameters along its length, Birds need different diameters to exercise the muscles of their feet, The perch should also have a rough texture, A sand coating has been shown to be an excellent surface to provide normal wear of the birds nails, Size 9in length, Ideal for parakeets, cockatiels, and similar sized birds, , Nail Trimmer and Perch in One, Exercises Leg Muscles, Pleasant Colors SKU: RNRDST1600