Birds will love the delicious fruity flavors in the cholla cactus. A heavy acrylic chain and beads entice the birds to come over and play. This treat also contains minerals from Manu Mineral Products. The Manu line of products replicates the same 9 minerals found in the famed banks of the Manu River in Peru, where each year wild tropical birds flock to ingest the rich mineral clay. Now you can give your bird these same healthy minerals. Products are veterinarian tested and approved. The small is 4"H x 1"D, large is 4"H x 2"D, and x-large is 4"H x 3"D.