COMPONENT : There’s a tumbler-like design on the bottom , which can ensure that the toy swing back and forth , and two balls with rails will follow the swing of the product , there’s a teaser ball on the top .(You need to insert it hard to prevent it from coming off) ADVANTAGE: It’s heavy enough , It always finds itself standing up right even after being knocked down completely , the cap is easy to remove and put back on , The size of the opening for treats are customizable by moving the switch on the side of the toy , you can allow a lot to come out , none at all . USAGE : You can use it as a late-night and afternoon snack dispenser , Put in a certain amount of cat food before you go to bed, It can take care of your kitten when they are hungry as apposed to bored , It also could ensures you are not kept up or woken up early . THE KITTEN’S SOUL MATE : It’s the most safety and interested toy for your cat . No battery include, When you are busy or away from home, It can be there for