Swing with Rope Cement Acrylic Medium - colors may vary COLORFUL ACRYLIC FRAME: the colorful acrylic frame will catch the attention of your pet birds, and its designed to be safe and durable. CEMENT SWING WITH SEASHELLS: constructed of lightweight cement and crushed seashells (for added calcium), the perch serves as a natural trimmer of your birds nails and beaks. COTTON ROPE ATTACHED: the cotton rope attached to the perch adds a fun toy for your bird to play with and peck at. QUICK-LINK HANGER: this product will attach quickly and easily to all types of wire cages. MADE FOR MEDIUM BIRDS: the arch measures at 6.25L x 10.50H, so its perfect for your medium sized birds. Other sizes and styles are available (sold separately) by Penn Plax.