Premium Quality: Made of high quality ABS, safe and non-toxic, durable. (This product requires two AAA batteries, not included in the package) Replaceable Toy: The ball of this toy can be replaced with other toys, you can replace the toy according to the cat's preferences. Automatic Lifting Ball: Clip the toy on the table, and the rope will automatically rise and fall after activating the toy. It can automatically turn off for about 5 minutes, or it can turn off the button while the toy is working. Perfect Gift: This interactive cat toy can stimulate their thinking and stimulate them to play actively. In addition, it reduces loneliness and releases the cat's stress, the first choice for cat lovers. Application: This automatic lifting ball has a diameter of 7 cm and is suitable for a table of 1 to 3.5 cm thickness. Please confirm the thickness of your table before purchasing.