Sweet and tasty I am the treat for everyone that loves to baked in this freshly season feast

Show up to duel, or maybe you'd rather a solo performance, Get in the open circle, spin around on your head, maybe swing your legs around your hands, Don't be misconstrued, if you think I've been dormant, I'm a master of Power Moves, and I'll collect those bands

I bind your papers so they won’t slip, or show a video that’s short and quick. I hold things firm or briefly play, In work or screen, I find my way.

I might look small, but I'm a bottomless pit. I hold your phone, money, hand cream, you name it. Sunglasses, chapstick, your keys, a little nail kit? Sure, why not. My inside is infinit.

I have a head and tail, but no arms and legs. What am I?