cat toy ,cat toys interactive for indoor cats,electronic cat toys,interactive cat toys for indoor cats,tumbler cat toy,cat toys for indoor cats ,interactive cat toy AUTOMATICALLY ROLLING : press down the button to turn it on, our cute cat toy will roll quietly and emit red light to attract the kitten to chase and play with it. it can keep rolling and won't fall down cause it's a tumbler design RELIEBALE DURABILITY: Made of ABS material with a smooth and wear-resistant surface, it won't get damage by the cat claw. it works well when using on the hard floors, tile floors and thin carpets, but it might not roll well on thick carpets. better to use it without barrier around ('')CUTE DESIGN WITH ATTRACTIVE:The Ninja shape design looks fantastic, It is more attractive for your cats when the eyes of the cat toy lights up.it can provides entertainment and exercise for your cat ,also enables them to stimulate hunting instincts ANTI-ADDICTED FUNCTION : this ninja cat toy has an automatic timer , it will running about 3 minutes after you turn it on and if theres no any interaction, the toy will go into standby mode for 2 hours(It can be activated when it's touched during standby mode.) then it will automatically running again,which stops your kitten from being addicted to the kitten teething toys, overstimulated or overtired from playing for too long. REPLACEABLE BATTERYit use 2pcs replaceable AAA batteries, which can offer a long enough power supply for your cat to play with it ,and its easy to replace it when the battery dies, you dont need spend too much time to charging it with USB cable, let your cat keep having fun