I have four feet.But I can not walk What am

I have four feet.But I can not walk What am I have four feet .But I can not walk.What am I have four feet.But I can't walk.What an I have four feet.But I can not I have four legs.but i can't walk.what am i I have no legs,but I can walk.What am 猜猜：I am something that can run but can not walk .What am I? I have four legs,but I can't walk;I have two pockets,but onl i have no feet 改成 i am HAVE NOT feet I have four feet what has four legs one back but can not walk? I am something that can run but never walk what am I?