Basic Information: Size: 20*20*8.5cm; Weight: 295g; A stable large white non-slip base made of durable plastic; Equipped with two butterfly replacements in case of accidentally chewing by cats.360 Self Spinning Toys: Equipped with an electric engineto rotate the Butterfly toy in a clockwise way to engage your cat to play, increasing to their curiosity and excitement.Lifelike Movement: The butterfly will keep rotating and fluttering after 360 degree rotating of the pole. Exhibiting the most realisticbutterfly flying status. Stimulating cats hunting instinct.Flashing Butterfly: It can swing & reflect in the dark space because of the special flash butterfly arms design. If you are worried about that your cat are bored when you turn off thelight, the butterfly toy is a perfect way to solve itRequires 3 AA batteries (not included), for best performance, we suggest using alkaline batteries. It is ideal for pet owners to play with catsOpen the battery cover and put three AA batteries,install the butterfly toy, put it on flat surface, then press the switch to playYou can change the speed and trajectory of the butterfly by changing radian of the steel wirePlease take care of the replacement. If the steel wire deform seriously, itwill not be restoredDesigned for pets only, not a children toyIf your cats do not immediately respond to the toy, try playing with your cats at a different time of day such as immediately before or after a mealPlease do not mix old and new batteries.Please do not mix alkaline,standard(carbon-zinc), or rechargeable(ni-cad, ni-mh, etc.)batteries.Remove toy from pet if any part becomes loose or detached.