Description:Material: The cat toy is made of PP, environmentally friendly and safe, easy to disassemble and clean, and durable.Multifunctional: This multifunctional cat toy integrates the functions of bird singing, self-weight balance movement (no electricity required), tumbler design, and built-in mint ball. It can attract cats' attention and interest in playing.Bird call sound function: built-in 1 bird call sounder, when the cat gently touches the toy to produce a shaking, the bird call sounder can be triggered, which can make a bird call to attract the cat's attention. (Built-in button battery in the sounder, easy to replace)Tumbler & self-weight balance mobile design: Adopt a self-weight balance system, without electric drive, the cat will move on its own after light touch and swing back and forth irregularly.A high-content catnip ball is built into the transparent part on the top of the toy to attract cats. This toy can be used by cats alone, or multiple cats can be used together to increase the cats happiness.Specification:Material: PPSize Chart:63.5x57x182.5mm/2.50x2.24x7.19inchPackage Includes:1 Piece Tumbler Cat ToyNote:1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful on-line shopping!