Premium quality: Made of high quality ABS material, safe and non-toxic, durable. (This product requires two AAA batteries not included.) Replaceable toy: The ball of this toy can be replaced by other toys. You can replace the toy according to the wishes of the cat. Br> Automatic lifting ball: Attach the toy to the table, and the rope will rise and fall automatically after you activate the toy. It can turn off automatically for about five minutes or turn off the button while the toy is working. Br> PERFECT GIFT: This interactive cat toy can stimulate their thinking and encourage them to play actively. In addition, it reduces loneliness and relieves stress from the cat, the first choice for cat lovers. Br> Application: This automatic lifting ball has a diameter of 7 cm and is suitable for a table with a thickness of 1-3.5 cm. Please confirm your table strength before purchasing. < br>