Manu Mineral Perch contains the same minerals in the identical concentration found in the Manu River's natural mineral-rich clay. Birds flock to this tributary of the Amazon River, and your birds will be drawn to this mineral-infused perch, molded to look like Cholla cactus wood. Just like birds in the wild, pet birds need the unique blend of the nine minerals this perch contains. Satisfies a bird's chewing desire with the benefits of Manu. 9" long. Diameters vary but are over 1".