3 high-content catnip balls– Under the transparent cover,3 high-content catnip balls are inside,which natually attracts cats.When the cat toys for indoor cats rotates,the balls will be irregularly bounced. . Large suction cup at the bottom– You can use the cat interactive toy horizontally or vertically because a powerful suction cup is designed at the bottom,which means it can be used on any surface,such as wooden floor,wall space,doors or windows. . Rotatable cat spring rod– Once cat plays the cat toys for kittens house,the spring rods designed on both sides of the main body rotates.When the toy rotates for a while,it will slowly stop under the gravity system design,waiting for the cat to swing again,which can excite cat again. . Safe and durable– Material:ABS and TPR that both are environmentally friendly and healthy.It’s not easy to be damaged by cat,even play the cat toys catnip for a long time. . Multifunctional – Increase cat’s hapiness and relieve cat’s daily anxiety of